An anti-theft bottle cap

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.

What is claimed is: 
     
         1 . An anti-theft bottle cap, comprising a lower cap and an upper cap; the upper cap is connected with a top part of the lower cap and is capable of being flipped opened with respect to the lower cap; an anti-theft mechanism is provided between the upper cap and the lower cap; an opening in communication with an interior of a container is provided on the lower cap; wherein the anti-theft bottle cap also comprises a flip plate which prevents prying of the anti-theft mechanism; the flip plate corresponds to the anti-theft mechanism and is mounted on the upper cap and extends to a position on the anti-theft mechanism. 
     
     
         2 . The anti-theft bottle cap according to  claim 1 , wherein the anti-theft mechanism comprises a tear-able element on the lower cap and locking pieces provided on the upper cap; locking holes corresponding to the locking pieces are provided on the tear-able element. 
     
     
         3 . The anti-theft bottle cap according to  claim 2 , wherein an inwardly recessed supporting platform is provided on the lower cap; the tear-able element comprises connecting rods and a tear strip; lower ends of the connecting rods are connected on the supporting platform; upper ends of the connecting rods are connected with the tear strip; the locking holes are provided on the tear strip. 
     
     
         4 . The anti-theft bottle cap according to  claim 2 , wherein one end of the flip plate is connected with the upper cap, and another end of the flip plate is a free end inclined and extended downwardly; a locking slot is formed between the flip plate and an outer wall of the upper cap; An upper end of the tear-able element is housed within the locking slot. 
     
     
         5 . The anti-theft bottle cap according to  claim 2 , wherein the outer wall of the upper cap is provided with a connecting plate; the locking pieces are provided on the connecting plate; outer boundaries of the locking pieces and the flip plate are radially within an outer diameter of the lower cap. 
     
     
         6 . The anti-theft bottle cap according to  claim 1 , wherein an annular supporting wall extends upwardly from a top side of the lower cap; a positioning piece is provided on an outer wall of the annular supporting wall; a positioning trough cooperating with the positioning piece is provided on an inner wall of the upper cap. 
     
     
         7 . The anti-theft bottle cap according to  claim 6 , wherein a first annular flange extending downwardly is provided inside the upper cap; an engagement slot is provided at an outer wall of the first annular flange; a sealing ring is provided in the engagement slot; an engagement block corresponding to the engagement slot is provided on an inner wall of the opening; sealed connection is achieved between the first annular flange and the opening via the engagement slot, the sealing ring and the engagement block. 
     
     
         8 . The anti-theft bottle cap according to  claim 6 , wherein a flow guiding element upwardly extending from an output end of the opening is provided; a flow guiding opening in communication with the opening is formed at a side wall of the flow guiding element; a backflow trough is formed between an outer wall of the flow guiding element and an inner wall of the annular supporting wall; a height of the backflow trough at a position corresponding to the flow guiding opening is smaller than heights of other positions of the backflow trough. 
     
     
         9 . The anti-theft bottle cap according to  claim 8 , wherein a flow guiding tongue is connected to an inner side wall of the opening; the flow guiding tongue is positioned corresponding to the flow guiding opening; one end of the flow guiding tongue is connected to the inner wall of the opening through a joining part; another end of the flow guiding tongue extends away from the opening; a breathing through hole is provided on the joining part. 
     
     
         10 . The anti-theft bottle cap according to  claim 1 , wherein anti-returning locks corresponding to a mouth part of the container are provided in an inner wall of the lower cap; an annular platform is provided horizontally extending around the inner wall of the lower cap; a second annular flange extends downwardly from the annular platform; the second annular flange, the annular platform and the inner wall of the lower cap form an annular housing slot; a sealing gasket matching with the mouth part of the container is provided inside the annular housing slot.