Safety-Lock Structure for Packaging Box

Abstract

The present application discloses a container for preventing children from opening, including a cover body and a container body having a neck finish. The neck finish is provided with external threads, and the cover body is provided with internal threads. The side wall of the cover body is provided with at least two pressing portions, and the inner wall of each pressing portion is provided with a flexible snap. The upper end surface of the container body is provided with a blocking portion corresponding to each flexible snap. When the cover body and the container body are screwed tightly, the flexible snap and the blocking portion are engaged with each other.

What is claimed is: 
     
         1 . A safety-lock structure for a packaging box comprising:
 a cover body; and   a container body having a neck finish, the neck finish having an opening, an outer wall of the neck finish being provided with external threads, an inner wall of the cover body being provided with internal threads which are in thread connection with the threads, a side wall of the cover body being provided with at least two pressing portions, an inner wall of each pressing portion being provided with a flexible snap, an upper end surface of the container body being provided with a blocking portion that corresponds to each flexible snap, after the cover body and the container body are screwed tight to each other, the flexible snaps and the blocking portions are engaged with each other.   
     
     
         2 . The safety-lock structure for a packaging box of  claim 1 , wherein a surface of the cover body is recessed inward and provided with recessed portions, inner side walls of the recessed portions forming the pressing portions, the flexible snaps being disposed on the inner side walls of the recessed portions and adjacent to a center of the cover body. 
     
     
         3 . The safety-lock structure for a packaging box of  claim 1 , wherein a slit groove is provided between a bottom portion of the recessed portion and the pressing portion. 
     
     
         4 . The safety-lock structure for a packaging box of  claim 1 , wherein each flexible snap comprises a base portion, a flexible block disposed on a lower surface of the base portion and adjacent to a one side of the base portion, and a notch snap groove being formed between the flexible block and another side of the base portion; after the cover body and the container body are screwed tight to each other, the blocking portions and the notch snap grooves are engaged with each other. 
     
     
         5 . The safety-lock structure for a packaging box of  claim 2 , wherein each flexible snap comprises a base portion, a flexible block disposed on a lower surface of the base portion and adjacent to a one side of the base portion, and a notch snap groove being formed between the flexible block and another side of the base portion; after the cover body and the container body are screwed tight to each other, the blocking portions and the notch snap grooves are engaged with each other. 
     
     
         6 . The safety-lock structure for a packaging box of  claim 3 , wherein each flexible snap comprises a base portion, a flexible block disposed on a lower surface of the base portion and adjacent to a one side of the base portion, and a notch snap groove being formed between the flexible block and another side of the base portion; after the cover body and the container body are screwed tight to each other, the blocking portions and the notch snap grooves are engaged with each other. 
     
     
         7 . The safety-lock structure for a packaging box of  claim 4 , wherein each flexible block is provided with a guiding piece which is in a same direction as a rotating direction of the internal threads; when the cover body and the container body are being screwed tightly together, the blocking portions slide along the guiding pieces and snap into the notch snap grooves. 
     
     
         8 . The safety-lock structure for a packaging box of  claim 5 , wherein each flexible block is provided with a guiding piece which is in a same direction as a rotating direction of the internal threads; when the cover body and the container body are being screwed tightly together, the blocking portions slide along the guiding pieces and snap into the notch snap grooves. 
     
     
         9 . The safety-lock structure for a packaging box of  claim 6 , wherein each flexible block is provided with a guiding piece which is in a same direction as a rotating direction of the internal threads; when the cover body and the container body are being screwed tightly together, the blocking portions slide along the guiding pieces and snap into the notch snap grooves. 
     
     
         10 . The safety-lock structure for a packaging box of  claim 1 , wherein the number of the flexible snaps is two, and the two flexible snaps are disposed opposite to each other on the inner wall of the cover body.