Fixing frame

A fixing frame installed between a first object and a second object, the first object and the second object being rotatable relative to each other through the fixing frame, the fixing frame comprising:

• a base body fixed on the first object, and comprising an annular wall, an accommodation structure and a push button, wherein the base body is divided into an inner space and an outer space by the annular wall, wherein the accommodation structure has a first lateral wall and a second lateral wall, the first lateral wall and the second lateral wall are opposed to each other, the first lateral wall is a part of the annular wall, the first lateral wall has a first opening and a second opening, and the second lateral wall has a third opening, wherein the push button comprises a pin, a pressing post, a positioning post, a retaining plate and a spring, the retaining plate has a first surface and a second surface, the first surface and the second surface are opposed to each other, the pin is protruded externally from the first surface and penetrated through the first opening, the pressing post is protruded externally from the first surface and penetrated through the second opening, the positioning post is protruded externally from the second surface and penetrated through the third opening, and the spring is sheathed around the positioning post and arranged between the second surface and the second lateral wall;
• and
• a turntable mechanism fixed on the second object, and comprising a circular disc and a ring-shaped rim, wherein the ring-shaped rim is perpendicular to the circular disc and extended in a direction toward the base body, the ring-shaped rim is sheathed around the annular wall, and the ring-shaped rim comprises plural fourth openings,
• wherein when the pressing post is not depressed, the pin is inserted into one of the plural fourth openings, so that the turntable mechanism is fixed on the base body and not rotated relative to the base body, wherein after the pressing post is depressed and the pin is detached from the fourth opening, the turntable mechanism is rotatable relative to the base body.