Horizontal combination fixator, and electronic device housing supporting same

The utility model discloses a horizontal combination fixator, and an electronic device housing supporting the same. The fixator comprises a horizontal frame and a plurality of fixing assemblies. The horizontal frame is provided with at least one rectangular hole, two long edges of the horizontal frame are both bent to form an engagement part, and two short edges of the horizontal frame are both extended to form a lock part. Two sides of the fixing assembly are both bent to form a bend piece. While using the fixator, two fixing assemblies are respectively locked at two sides of a device by locking pieces, the device is aligned to the rectangular hole, the bend pieces are locked on the engagement parts by locking pieces, and the locking parts are locked on a cabinet by screws, thereby allowing multiple electronic devices to be mounted on the cabinet. The electronic device housing includes a first terminal plane, an opposite second terminal plane and fixing planes oppositely arranged on two sides of the first te