Adjustable connecting piece for communication case

The utility model relates to the technical field of communication cases, and discloses an adjustable connecting piece for a communication case, which comprises a rack, a bottom plate is placed on the upper side wall of the rack, the inner wall of the rack is rotatably connected with a same threaded rod, the rod wall of the threaded rod is sleeved with a threaded cylinder in a threaded manner, and the threaded cylinder is connected with a threaded rod. A guide plate is fixedly connected to the upper side wall of the threaded cylinder, a guide opening matched with the guide plate is formed in the upper side wall of the rack, the side wall, extending out of the guide opening, of the guide plate is fixedly connected with the lower side wall of a bottom plate, and a mounting plate is hinged to the left side wall of the bottom plate; and the upper side wall of the mounting plate is fixedly connected with a case body through bolts. When equipment on the rear side or beside the communication case is overhauled, the c