Sofa armrest turntable capable of sliding stably

The utility model discloses a sofa armrest turntable capable of sliding stably, which comprises a bottom plate and a rotating plate, an elastic dislocation device is arranged between the bottom plate and the rotating plate, relative sliding displacement is realized through the elastic dislocation device, and the rotating plate can rotate relative to the bottom plate and the elastic dislocation device through a rotating mechanism. The elastic dislocation device comprises a guide plate fixedly connected to the bottom plate, a sliding support integrally connected with the rotating plate, a steel ball sliding disc clamped between the sliding support and the guide plate, and a spring connected between the bottom plate and the sliding support and playing a reset role, wherein the upper side and the lower side of the sliding support are arranged on the upper side and the lower side of the guide plate respectively in a clamping mode. The connecting piece is simple in structure, tight in connection, convenient to asse