Zipper, child resistant zipper bag and opening method thereof

Abstract

The present application provides a zipper, a child resistant zipper bag and an opening method thereof. A zipper includes a first wing and a second wing, at least one first strip is provided on an inner side of the first wing, at least one second strip is provided on an inner side of the second wing, the number of the second strip corresponds to that of the first strip, and the first strip is interlocked with the second strip, and a protrusion is provided on an outer side of the first wing and/or an outer side of the second wing.

1 . A child resistant zipper, comprising: a first wing and a second wing, wherein at least one first strip is provided on an inner side of the first wing, at least one second strip is provided on an inner side of the second wing, the number of the second strip corresponds to that of the first strip, and the first strip is interlocked with the second strip, and a protrusion is integrally provided on an outer side of the first wing and/or an outer side of the second wing,
 wherein the protrusion comprises a bulge, the bulge is located at an area corresponding to a projection area of the first strip on the first wing and/or the bulge is located at an area corresponding to a projection area of the second strip on the second wing;   the bulge is a continuous line, which is located at a back side of the first strip and/or the second strip;   an interlocking between the first strip and the second strip is misaligned by sliding.   
     
     
         2 . (canceled) 
     
     
         3 . The child resistant zipper according to  claim 1 , wherein at least one second strip is provided on the first wing, at least one first strip is provided on the second wing, and the bulge is located at the area corresponding to the projection area of the second strip on the first wing and/or the bulge is located at the area corresponding to the projection area of the first strip on the second wing. 
     
     
         4 . The child resistant zipper according to  claim 1 , wherein at least one first strip and at least one second strip are provided on the first wing from top to bottom, and at least one second strip and at least one first strip are provided on the second wing from top to bottom; the first strip of the first wing is interlocked with the second strip of the second wing, and the first strip of the second wing is interlocked with the second strip of the first wing; 
 the protrusion comprises a bulge that is located between the first strip and the second strip of the first wing and/or the second wing.   
     
     
         5 . The child resistant zipper according to  claim 1 , wherein the protrusion comprises a bulge, the bulge is integrally formed with the first strip and the second strip; the first strip and the second strip adopt a multi-snap-fit structure, and the first strip is interlocked with the second strip by snap-fit. 
     
     
         6 . The child resistant zipper according to  claim 1 , wherein a side of the protrusion that is away from the first strip or the second strip is a cambered surface. 
     
     
         7 . A child resistant zipper bag, wherein the child resistant zipper bag comprises a bag body that is connected with the zipper according to  claim 1 , wherein the first wing comprises a first upper wing and a first lower wing, which are integrally connected to each other; the first upper wing is located above a location where the first strip and/or the second strip are provided on the first wing, the first lower wing is located below the location where the first strip and/or the second strip are provided on the first wing, outer sides of the first upper wing and the first lower wing are connected to an inner side of the bag body;
 the second wing comprises a second lower wing that is provided in correspondence to the first lower wing, an outer side of the second lower wing is connected to an inner side of the bag body, the first strip and/or the second strip are located at an upper end of the second lower wing, and the strips of the first wing and the second wing are correspondingly interlocked with each other; and   the protrusion is attached to the inner side of the bag body;   wherein the protrusion comprises a bulge, the bulge is located at an area corresponding to a projection area of the first strip on the first wing and/or the bulge is located at an area corresponding to a projection area of the second strip on the second wing;   the bulge is a continuous line, which is located at a back side of the first strip and/or the second strip;   an interlocking between the first strip and the second strip is misaligned by sliding.   
     
     
         8 . The child resistant zipper bag according to  claim 7 , wherein the protrusion comprises a bulge, wherein the bulge is located at an area corresponding to a projection area of the first strip on the first wing and/or the bulge is located at an area corresponding to a projection area of the second strip on the second wing. 
     
     
         9 . The child resistant zipper bag according to  claim 7 , wherein at least one second strip is provided on the first wing, at least one first strip is provided on the second wing, and the bulge is located at the area corresponding to the projection area of the second strip on the first wing and/or the bulge is located at the area corresponding to the projection area of the first strip on the second wing. 
     
     
         10 . The child resistant zipper bag according to  claim 7 , wherein at least one first strip and at least one second strip are provided on the first wing from top to bottom, and at least one second strip and at least one first strip are provided on the second wing from top to bottom; the first strip of the first wing is interlocked with the second strip of the second wing, and the first strip of the second wing is interlocked with the second strip of the first wing; 
 the protrusion comprises a bulge that is located between the first strip and the second strip of the first wing and/or the second wing.   
     
     
         11 . The child resistant zipper bag according to  claim 7 , wherein the protrusion comprises a bulge, the bulge is integrally formed with the first strip and the second strip; the first strip and the second strip adopt a multi-snap-fit structure, and the first strip is interlocked with the second strip by snap-fit. 
     
     
         12 . The child resistant zipper bag according to  claim 7 , wherein a side of the protrusion that is away from the first strip or the second strip is a cambered surface. 
     
     
         13 . The child resistant zipper bag according to  claim 7 , wherein the second wing further comprises a second upper wing that is provided in correspondence to the first upper wing and is integrally connected to the second lower wing at the location where the first strip and/or the second strip are provided on the second wing, and an outer side of the second upper wing is connected to the inner side of the bag body; and 
 a first tear line is provided on the first upper wing and the second upper wing, a second tear line is provided on the bag body, the first tear line and the second tear line are in a same straight line, and a distance between the first tear line and the first strip is less than 10 mm.   
     
     
         14 . The child resistant zipper bag according to  claim 9 , wherein an embossing is provided on the inner side of the bag body. 
     
     
         15 . The child resistant zipper bag according to  claim 13 , wherein an embossing is provided on the inner side of the bag body. 
     
     
         16 . A method of opening a child resistant zipper bag according to  claim 7 , wherein the method comprising following steps:
 S1: gripping, by two hands, a bag body at a location where a first strip and a second strip are located such that a protrusion is gripped against by fingers through the bag body;   S2: sliding, by two hands, the bag body in a same direction or opposite directions such that the interlocking between the first strip and the second strip is misaligned;   S3: opening the bag body from a position at which the first strip misaligns with the second strip.