The invention discloses a safe anti-counterfeiting structure for
wine bottles, which comprises an outer cover, an inner cover, a
plastic bottle opening, an inner plug, a sealing cover and a key. The
plastic bottle opening is sleeved on an opening of a
wine bottle, the inner plug is embedded in the opening of the
wine bottle, the sealing cover is locked with the inner plug through a sliding block, a nut corresponding to the sliding block is arranged on the lateral wall of the
plastic bottle opening, the inner cover is sleeved on the sealing cover and is matched with the plastic
bottle opening in a moving mode, and the outer cover is sleeved on the opening of the
wine bottle outside the whole inner cover and the plastic bottle opening; the lower portion of the sealing cover forms a pull rod integrally, and the lower end of the pull rod forms a clamping head; the middle portion of the sliding block forms a long-shaped lock hole, the inner edge portion of one side of the lock hole extends downwards to form at least two upside-down-hanging teeth, a clamping area is defined by the upside-down-hanging teeth, and the inner
diameter of the clamping area is smaller than that of the other side of the lock hole; and the outer
diameter of the clamping head is larger than the inner
diameter of the clamping area and is smaller than the inner diameter of the other side of the lock hole. Accordingly, the
assembly of the sealing cover and the inner plug is
safer, the anti-counterfeiting function of wine bottles is
safer and more reliable, simultaneously parts are simplified, and the
assembly process is simple and practicable.