This design is to solve the shortcomings of the rigidity, roughness and up and down, left and right position change of the general CCTV exposure type, fixed with a ceiling-embedded fixing spring to be able to buy on the ceiling, and up and down, left and right The upper and lower rails and the left and right frame were used to change the position as needed by the public. Up and down position is changed and fixed by using the cushioning effect of the tooth rail of the upper and lower rail and the ball buffer spring on the rail ball holder and the rotational force of the rail angle fixing ball. In addition, by using the ceiling-mounted fixing frame according to the present invention is characterized by eliminating the rigidity, clunky felt in the exposure type of the general CCTV.
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