Metal bed frame capable of being freely installed

The utility model discloses a metal bed frame capable of being freely installed. The metal bed frame comprises a vertical column, a supporting plate frame and a horizontal pipe, wherein an installation hole is formed in the vertical column, the supporting plate frame is connected with the vertical column by virtue of a double-hole plastic internal connector, one end of the double-hole plastic internal connector is provided with two side-by-side cylinders with threaded holes in the cylinders, the other end of the double-hole plastic internal connector is provided with a rectangular block, the rectangular block is inserted into an installation hole in the end part of the supporting plate frame, and the cylinders internally provided with the threaded holes are inserted into the installation hole of the vertical column; and the horizontal pipe is connected with the vertical column by virtue of a single-hole plastic internal connector, the single-hole plastic internal connector is a cylinder, one end of the single-hole plastic internal connector is provided with threaded holes, the end of the single-hole plastic internal connector with the threaded holes is inserted into the installation hole of the vertical column, and the other end of the single-hole plastic internal connector is inserted into a through hole of the horizontal pipe. According to the metal bed frame capable of being freely installed, disclosed by the utility model, the supporting plate frame is combined with the horizontal pipe by adopting an internal connection mode, and the plastic internal connectors are built in each metal pipe interface and are fixed by screws, so that the metal bed frame is convenient to produce, does not need to be welded, and is strong in stability, low in transportation cost and convenient to assemble, disassemble and carry.