Joint positioning structure, folding assembly and functional device

Abstract

A joint positioning structure (100) includes a first bracket (110), a first fitting (120), a mounting shell (130), and a connecting post (140). The first fitting (120) is rotatably connected to the first bracket (110). The first fitting (120) has a first through hole (121) and a slot (122). The first through hole (121) is perpendicular to the slot (122). The slot (122) includes an insertion port (1221) and a cavity (1222). The insertion port (1221) and the cavity (1222) are connected. The cavity (1222) gradually contracts away from the insertion port (1221). The mounting shell (130) is used to install the functional module (20). The mounting shell (130) includes a shell (131) and a clip (132) protruding from the shell (131). The clip (132) is disposed in the clip groove (122) and the clip (132) has a threaded hole (1321) that mates with the first through hole (121). The connecting post (140) is inserted into the first through hole (121) and connected to the threaded hole (1321). The clip (132) enters the slot (1222) through the insertion port (1221) so that the first through hole (121) and the threaded hole (1321) are coaxial. In this joint positioning structure, as the groove (1222) gradually contracts away from the insertion port (1221), the locking body (132) enters the groove (1222) through the insertion port (1221), thereby making the first through hole (121) and the threaded hole (1321) coaxial. This allows the connecting post (140) to effectively penetrate the first through hole (121) of the first fitting (120) and the threaded hole (1321) connected to the mounting shell (130). It also includes a folding assembly (10) and a functional device (1).

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