Simple bed with improved support legs

The invention relates to the technical field of simple beds, and specifically relates to a simple bed with improved support legs. The simple bed is characterized in that support legs adopt hinge typeopening and closing support legs; the hinge type opening and closing support legs include first hinge support leg structures, second hinge support leg structures and supporting bottom rods; the two ends at the bottoms of the first hinge support leg structures are respectively in hinged joint to the supporting bottom rods; the two ends at the bottoms of the second hinge support leg structures are respectively in hinged joint with the supporting bottom rods located between the two ends at the bottoms of the first hinge support leg structures; the top parts of the first hinge support leg structures are rotatably connected to the back sides at the corresponding parts of a bed plate to form fixing rotary sides; the places having spacings between the back sides of the bed plate and each fixing rotary side are respective