Patent ID: 7220218

Claim:
A modified trampoline holder structure comprising a plurality of transverse tubes, at least six connection sleeves, and at least three supporting tubes, said transverse tubes being connected together into a ring shape, each said connection sleeve having an insertion tube portion and a tube clamping portion, each said tube clamping portion firmly clamping a joint of two adjacent said transverse tubes, each said insertion tube portion being inserted into at least an end opening of one of said supporting tubes to support said transverse tubes, locking bumps being formed at two sides of an inner edge of each said tube clamping portion, corresponding locking grooves being formed at two sides of the joint of two adjacent said transverse tubes, said locking bump and said locking groove being locked together when said tube clamping portion firmly clamps the joint of two adjacent said transverse tubes, each insertion tube portion being composed of at least two arc-shaped sheets, detents that can be locked together being formed on said two arc-shaped sheets, said detents on said two arc-shaped sheets being locked together when said insertion tube portion is inserted into the end opening of said supporting tube so that said tube clamping portion won't easily come off from the joint of two adjacent said transverse tubes.