One-button foldable bed frame and playard

A one-button foldable bed frame, comprising a base, a plurality of brackets and a plurality of folding mechanisms, wherein each of the brackets comprises upright rods, a bottom frame rod and two frame-around rods, the bottom frame rod has one end hinged to the base and the other end hinged to the upright rod, the plurality of upright rods are provided to surround the base at intervals, each of the upright rods is hinged to the two frame-around rods, respectively, each of the frame-around rods is hinged to one frame-around rod of an adjacent bracket, the folding mechanism comprises a connecting rod assembly, a sliding member and two frame-around connecting rods, the sliding member is slidably connected to the upright rods, the sliding member is hinged to the two frame-around connecting rods, respectively, each of the frame-around connecting rods is hinged to one frame-around rod, the bottom frame rod is connected to the sliding member through the connecting rod assembly, wherein when the bottom frame rod rotates to a first preset position, the connecting rod assembly is capable of driving the sliding member to move towards one end of one upright rod close to the frame-around rods, so that the frame-around connecting rod pushes the frame-around rods up to a second preset position.