Packing box

Abstract

A packing box includes an inner box and an outer box, where an inner wall of the outer box is provided with a first abutting portion, an outer side wall of the inner box is provided with an elastic protruding portion, and when the inner box is accommodated in a first accommodating cavity of the outer box, the elastic protruding portion abuts against the first abutting portion in a pull-out direction so that the packing box is in an locked state; when the elastic protruding portion is pressed by using an external force, the elastic protruding portion is staggered with the first abutting portion, so that the inner box and the outer box are in an unlocked state. A locking structure is formed by using the elastic protruding portion and the first abutting portion. The locked state can be released by pressing the elastic protruding portion by using a finger.

1 . A packing box, comprising:
 an outer box, wherein the outer box is provided with a first accommodating cavity and an outer box opening in communication with the first accommodating cavity, and a first abutting portion arranged on an inner wall of the outer box; and   an inner box, accommodated in the first accommodating cavity, wherein the inner box is slidable in and out of the first accommodating cavity through the outer box opening, and an elastic protruding portion is arranged on an outer wall of the inner box;   when the inner box is accommodated in the first accommodating cavity, the elastic protruding portion abuts against the first abutting portion, so that the inner box and the outer box are in a locked state; and   when the elastic protruding portion is pressed by using an external force, the elastic protruding portion moves to the first accommodating cavity and is staggered with the first abutting portion, so that the inner box and the outer box are in an unlocked state.   
     
     
         2 . The packing box according to  claim 1 , wherein the outer box comprises an outer box side wall, an inner wall of the outer box side wall is provided with a recessed portion, the recessed portion is configured to accommodate the elastic protruding portion, and a side portion of the recessed portion opposite to the elastic protruding portion forms the first abutting portion; and
 the outer box side wall is provided with a first through hole, the first through hole is located in the recessed portion, and when the inner box is accommodated in the first accommodating cavity, a position of the first through hole corresponds to a position of the elastic protruding portion.   
     
     
         3 . The packing box according to  claim 2 , wherein the outer box further comprises a separating plate, and the separating plate is arranged between the outer box and the inner box, and
 a length of the separating plate is less than a length of the outer box side wall, and the recessed portion is formed by a region on the outer box side wall that is not covered by the separating plate.   
     
     
         4 . The packing box according to  claim 2 , wherein the outer box further comprises an outer box bottom wall, and the outer box bottom wall is connected to the outer box side wall;
 one end of the outer box side wall away from the outer box bottom wall is provided with a notch; and/or   the outer box bottom wall is provided with a second through hole.   
     
     
         5 . The packing box according to  claim 3 , wherein two elastic protruding portions are arranged on the outer wall of the inner box, the two elastic protruding portions are arranged facing away from each other, and two first abutting portions are arranged on the inner wall of the outer box; and
 when the inner box is accommodated in the first accommodating cavity, the two elastic protruding portions respectively abut against the two first abutting portions.   
     
     
         6 . The packing box according to  claim 1 , wherein the inner box is provided with a second accommodating cavity, the packing box further comprises an inner lining accommodated in the second accommodating cavity, the inner lining is provided with an inner cavity, and the inner cavity is configured to accommodate an article. 
     
     
         7 . The packing box according to  claim 1 , wherein the elastic protruding portion comprises an elastic piece, one end of the elastic piece is connected to the outer wall of the inner box, and an other end of the elastic piece is relatively away from the outer wall of the inner box. 
     
     
         8 . The packing box according to  claim 7 , wherein the inner box comprises an inner box bottom wall, and a partial region of the inner box bottom wall is cut and folds toward a direction away from the outer wall of the inner box, to form the elastic piece. 
     
     
         9 . The packing box according to  claim 2 , wherein a second abutting portion is further arranged on the inner wall of the outer box side wall, the second abutting portion is closer to the outer box opening than the first abutting portion, and the second abutting portion is configured to abut against the elastic protruding portion, to restrict a movable range of the inner box in a pull-out direction. 
     
     
         10 . The packing box according to  claim 9 , wherein the outer box side wall folds towards the first accommodating cavity at the outer box opening, to form the second abutting portion. 
     
     
         11 . The packing box according to  claim 3 , wherein a second abutting portion is further arranged on the inner wall of the outer box side wall, the second abutting portion is closer to the outer box opening than the first abutting portion, and the second abutting portion is configured to abut against the elastic protruding portion, to restrict a movable range of the inner box in a pull-out direction. 
     
     
         12 . The packing box according to  claim 11 , wherein the outer box side wall folds towards the first accommodating cavity at the outer box opening, to form the second abutting portion. 
     
     
         13 . The packing box according to  claim 4 , wherein a second abutting portion is further arranged on the inner wall of the outer box side wall, the second abutting portion is closer to the outer box opening than the first abutting portion, and the second abutting portion is configured to abut against the elastic protruding portion, to restrict a movable range of the inner box in a pull-out direction. 
     
     
         14 . The packing box according to  claim 13 , wherein the outer box side wall folds towards the first accommodating cavity at the outer box opening, to form the second abutting portion. 
     
     
         15 . The packing box according to  claim 5 , wherein a second abutting portion is further arranged on the inner wall of the outer box side wall, the second abutting portion is closer to the outer box opening than the first abutting portion, and the second abutting portion is configured to abut against the elastic protruding portion, to restrict a movable range of the inner box in a pull-out direction. 
     
     
         16 . The packing box according to  claim 15 , wherein the outer box side wall folds towards the first accommodating cavity at the outer box opening, to form the second abutting portion.