Folding assembly, hinge device and intelligent terminal

The invention provides a folding assembly, a hinge device and an intelligent terminal, and relates to the technical field of electronic equipment. The folding assembly comprises a base, at least two middle frame connecting pieces, at least two synchronous connecting pieces and at least two door plates. The two middle frame connecting pieces are respectively arranged on two opposite sides of the base; one end of the synchronous connecting piece is rotatably connected with the base, and the other end is slidably connected with the middle frame connecting piece; the door plate is rotationally connected with the synchronous connecting piece; at least one clamping groove is formed in the base, a first protruding part is arranged on the door plate, and in the folding state, the first protruding part is matched with the clamping groove in a clamped mode. According to the folding assembly, the problem that in the folding process, the door plate is prone to falling off, and consequently the structure is unstable can b