A connecting component and an
image acquisition device include a first connector, a second connector, and a collar. The first connector has a
ball joint groove with an opening and a first positioning structure. The second connector has a
ball joint portion with multiple second positioning structures that are ball-fitted into the
ball joint groove through the opening. One of these second positioning structures is positioned relative to the first positioning structure. The ball joint portion is adapted to rotate relative to the ball joint groove to position another of the second positioning structures relative to the first positioning structure. The
diameter of the opening is smaller than the
diameter of the ball joint portion, and the center of the ball joint portion is located within the ball joint groove. The collar is fitted onto the ball joint groove to prevent the first positioning structure from disengaging from its corresponding second positioning structure and to prevent the ball joint portion from disengaging from the ball joint groove.