Retaining device for replaceable hanger frame

A retaining device for a replaceable hanger frame comprising a main supporting post installed at a base and at least one retainer installed at the main supporting post;

• the retainer being formed by an enclosing sleeve and a buckle sleeve in the enclosing sleeve;
• the enclosing sleeve being made of copper and enclosing the main supporting post;
• a surface of the enclosing sleeve is protruded with a locking seat;
• the locking seat is locked with a hanger rod, characterized in that:
• a lower end of an inner surface of the enclosing sleeve is installed with a cambered groove, the buckle sleeve is formed by two opposite wave-like cambered sheets which are assembled to inner side of the enclosing sleeve;
• each wave-like cambered sheet of the buckle sleeve is installed with a plurality of stop ribs;
• the wave-like cambered sheet have outer tips at an outer surface thereof;
• each outer tip resists against an inner surface of the enclosing sleeve;
• the wave-like cambered sheet has inner tips at an inner surface thereof;
• each inner tip resists against an annular surface of the main supporting post as the buckle sleeve is buckled to the main supporting post;
• a concave space formed on the outer surface of the buckle sleeve and an inner surface of the enclosing sleeve provides a margin for compressing and deformation as the main supporting post is engaged;
• thereby, the enclosing sleeve and buckle sleeve are positioned to a predetermined position of the main supporting post.