Packaging box with drop protection and child lock

Abstract

A packaging box with drop protection and a child lock includes a sleeve box and an inner box. A receiving cavity for receiving the inner box is formed in the sleeve box. A cavity is formed in the inner box. The inner box is provided with a storage cavity. Partition boards are arranged on side surfaces of the storage cavity, end surfaces of the partition boards are uneven surfaces, and the partition boards are oblique. Protrusions are arranged on side plates, and mortises are formed in positions, corresponding to the protrusions, of the sleeve box. The packaging box may gradually adapt to the size of a product to ensure that the product is placed more tightly, guarantees an effective clamping force, provides drop and buffer protection, and exhibits more appearance features of the product, thereby providing a new product packaging experience.

What is claimed is: 
     
         1 . A packaging box with drop protection and a child lock, comprising a sleeve box and an inner box, two ends of the sleeve box communicating or half communicating with each other to form a receiving cavity for receiving the inner box, a cavity being formed in the inner box, the inner box being provided with a storage cavity, partition boards spaced apart from each other being arranged on side surfaces of the storage cavity, end surfaces of the partition boards being uneven surfaces, and the partition boards being oblique to make the storage cavity shaped like an inverted frustum;
 wherein, two symmetric side plates are arranged on two sides of the inner box and are movable towards the cavity of the inner box under the action of an external force, protrusions are arranged on the side plates, mortises are formed in positions, corresponding to the protrusions, of the sleeve box, and when the inner box is stored in the receiving cavity of the sleeve box, the protrusions are inserted into the mortises.   
     
     
         2 . The packaging box with drop protection and a child lock according to  claim 1 , wherein the sleeve box is formed by folding a first sheet. 
     
     
         3 . The packaging box with drop protection and a child lock according to  claim 2 , wherein parallel first folds are sequentially arranged on the first sheet from one end to the other end, the first sheet is folded along the first folds, and a head end and a tail end of the first sheet are bonded together to form the sleeve box; and holes for forming the mortises are formed in the first sheet. 
     
     
         4 . The packaging box with drop protection and a child lock according to  claim 1 , wherein the inner box is formed by folding a second sheet. 
     
     
         5 . The packaging box with drop protection and a child lock according to  claim 4 , wherein the second sheet is divided by second folds into a first region, two second regions, two third regions, two fourth regions, two fifth regions and four sixth regions; the two second regions are respectively located on a left side and a right side of the first region; the two third regions are respectively located at a front end and a rear end of the first region; one of the two fourth regions is located on a left side of the second region on the left side, and the other fourth region is located on a right side of the second region on the right side; one of the two fifth regions is located at a rear end of the third region at the rear end, and the other fifth region is located at a front end of the third region at the front end; and the four sixth regions are respectively located at front ends and rear ends of the two second regions;
 wherein, the first region, the second regions, the third regions, the fourth regions, the fifth regions and the sixth regions are correspondingly folded along the second folds to form side surfaces of the inner box by the second regions and the third regions, the fourth regions are bonded together to form a bottom of the inner box, and the cavity of the inner box is defined by the first region, the second regions, the third regions and the fourth regions; the fifth regions and the sixth regions are inserted into the cavity after being folded, C-shaped fractures are arranged on the second folds at joints between the fifth regions and the third regions, the protrusions are formed in the regions where the fractures are located after the fifth regions and the third regions are folded, the third regions are supported by front sides of the sixth regions, and the fifth regions connected to the third regions are clamped by the sixth regions; when pressed, the sixth regions, the third regions and the fifth regions are passively pushed inwards under the action of an external force; after the external force is removed, a reactive force generated by passively pressing the sixth regions and a resilience force generated by bending the third regions inwards form an outward pushing force to enable the third regions and the protrusions to restore; and after restoration, the sixth regions prevent the fifth regions from further moving, and the third regions connected to the fifth regions are prevented from further moving outwards.   
     
     
         6 . The packaging box with drop protection and a child lock according to  claim 5 , wherein a seventh region is arranged in the first region, a plurality of oblique eighth regions are arranged on side surfaces of the seventh region, a right end of the seventh region is disconnected from the first region, third folds are arranged at a left end of the seventh region and connected to the first region, two side edges of each of the eighth regions are disconnected from the first region and the seventh region, and two ends of each of the eighth regions are respectively connected to the first region and the seventh region; after the second sheet is folded to form the inner box, a back side of the seventh region is naturally bonded to the fourth regions under the action of a glue, and then the fourth regions are pushed to move leftwards and the first region is pushed to move rightwards, such that a sagging space forms the storage cavity, and the eight regions form the partition boards. 
     
     
         7 . The packaging box with drop protection and a child lock according to  claim 3 , wherein according to  claim 3 , wherein the first sheet is a cardboard. 
     
     
         8 . The packaging box with drop protection and a child lock according to  claim 6 , wherein the second sheet is a cardboard.