Abstract: An anti-counterfeit bottle cap, having a body (10) and a safety ring bell (20), and a slit (30) in between; an anti-theft mechanism (40) is provided within the slit (30); the anti-theft mechanism (40) has upper rods (41), lower rods (43) and a tear ring (42) in between; upper ends of the upper rods (41) are connected to the body (10), lower ends of which are connected to the tear ring (42); upper ends of the lower rods (43) are connected with the tear ring (42), lower ends of which are connected with the safety ring belt (20). The tear ring is subject to irreversible plastic deformation after the body (10) disengages from the bottle mouth. Therefore, the tear ring (42) cannot be restored. The torn and broken upper rods (41), lower rods (43) or tear ring (42) cannot be glued back to its/their original position(s).

Abstract: An anti-counterfeit bottle cap, having a body (10) and a safety ring bell (20), and a slit (30) in between; an anti-theft mechanism (40) is provided within the slit (30); the anti-theft mechanism (40) has upper rods (41), lower rods (43) and a tear ring (42) in between; upper ends of the upper rods (41) are connected to the body (10), lower ends of which are connected to the tear ring (42): upper ends of the lower rods (43) are connected with the tear ring (42), lower ends of which are connected with the safety ring belt (20). The tear ring is subject to irreversible plastic deformation after the body (10) disengages from the bottle mouth. Therefore, the tear ring (42) cannot be restored, The torn and broken upper rods (41), lower rods (43) or tear ring (42) cannot be glued back to its/their original position(s).

Abstract: An anti-theft bottle cap having a lower cap (1), an upper cap (2), and an anti-theft mechanism (3) provided therebetween; an opening (5) in communication with an interior of a container (6) is provided on the lower cap (1); the bottle cap also has a flip plate (21) which prevents prying of the anti-theft mechanism (3); the flip plate (21) is a grabbing part which is grabbed to facilitate opening of the upper cap when it is necessary to pour liquid oil out of the bottle. Since the flip plate (21) partially blocks the anti-theft mechanism, the anti-theft mechanism can be prevented from being pried undamaged, thereby achieving better anti-theft effect.