Zip lock

Abstract

A zip lock for a storage bag having a first surface and a second surface, includes a zip fastener and a lock fastener integrally provided on the first and second surfaces respectively. The zip fastener has two zip bodies spacedly and integrally extended from the first surface and a coupling groove extending towards the first surface at a position between two inner walls of the zip bodies. The lock fastener has two locking arms spacedly and integrally extended from the second surface and a sealing arm integrally extended from the second surface at a position between the two locking arms to form two sealing cavities, wherein the sealing arm is sealedly inserted into the coupling groove until the round end of the sealing arm is positioned at the round end of the coupling groove.

1 . A zip lock for a storage bag having a first surface and a second surface, comprising a zip fastener and a lock fastener integrally provided on said first and second surfaces respectively, 
 said zip fastener having a zip body which is integrally extended from said first surface, and has a neck portion extended from said first surface, and at least an enlarged head portion integrally extended from said neck portion to form two round zipping grooves between said neck portion and said head portion at two sides thereof respectively,    said lock fastener, which is detachably attached to said zip fastener, having two locking arms spacedly and integrally extended from said second surface to define a engaging cavity between said two locking arms, wherein each of said locking arms has a round hooking end arranged when said zip body is inserted into said engaging cavity, said round hooking ends of said locking arms are engaged with said zipping grooves to seal two inner surfaces of said locking arms at two outer surfaces of said zip body respectively, such that said zip fastener is sealedly interlocked with said lock fastener for sealing said first surface with said second surface in an overlapping manner.    
   
   
       2 . The zip lock, as recited in  claim 1 , wherein said zip fastener further has an elongated coupling groove having a first round end extending towards said first surface to define a said neck portion and two enlarged head portions of said zip fastener at two sides of said coupling groove, wherein said zipping grooves are formed at two sides between two sides of said neck portion and said respectively head portion.  
   
   
       3 . The zip lock, as recited in claim,  2 , wherein said lock fastener further has a sealing arm integrally extended from said second surface at a position between said two locking arms to divide said engaging cavity into two sealing cavities between two sides of said sealing arm and said corresponding locking arm respectively, wherein said sealing arm, having a second round end, is arranged to be sealedly inserted into said coupling groove until said round end of said sealing arm is positioned at said round end of said coupling groove when said locking arms are engaged with said zipping grooves respectively.  
   
   
       4 . The zip lock, as recited in  claim 1 , wherein said round hooking end of said locking arms of said lock fastener, which is bent inwardly, has a radius of curvature substantially corresponding to a radius of curvature of said respective round zipping groove such that said zip fastener and said lock fastener is fittedly interlocked with each other when said round hooking end is sealedly engaged with said round zipping groove.  
   
   
       5 . The zip lock, as recited in  claim 3 , wherein said round hooking end of said locking arms of said lock fastener, which is bent inwardly, has a radius of curvature substantially corresponding to a radius of curvature of said respective round zipping groove such that said zip fastener and said lock fastener is fittedly interlocked with each other when said round hooking end is sealedly engaged with said round zipping groove.  
   
   
       6 . The zip lock, as recited in  claim 4 , wherein said second round end of said sealing arm has a radius of curvature substantially corresponding to said first round end of said coupling groove in such a manner than when said sealing arm is inserted into said coupling groove to engage said zip fastener with said lock fastener, said first round end is sealedly engaged with said second round end so as to substantially restrict a lateral movement between said zip fastener and said lock fastener.  
   
   
       7 . The zip lock, as recited in  claim 5 , wherein said second round end of said sealing arm has a radius of curvature substantially corresponding to said first round end of said coupling groove in such a manner than when said sealing arm is inserted into said coupling groove to engage said zip fastener with said lock fastener, said first round end is sealedly engaged with said second round end so as to substantially restrict a lateral movement between said zip fastener and said lock fastener.  
   
   
       8 . The zip lock, as recited in  claim 3 , wherein a surface roundness of said sealing arm is shaped and sized matching with a surface roundness of a sidewall of said coupling groove so that said sealing arm is easily inserted into said coupling groove as guided by said sidewall of said coupling groove.  
   
   
       9 . The zip lock, as recited in  claim 6 , wherein a surface roundness of said sealing arm is shaped and sized matching with a surface roundness of a sidewall of said coupling groove so that said sealing arm is easily inserted into said coupling groove as guided by said sidewall of said coupling groove.  
   
   
       10 . The zip lock, as recited in  claim 7 , wherein a surface roundness of said sealing arm is shaped and sized matching with a surface roundness of a sidewall of said coupling groove so that said sealing arm is easily inserted into said coupling groove as guided by said sidewall of said coupling groove.  
   
   
       11 . The zip lock, as recited in  claim 1 , wherein said sealing arm has a height corresponding to a depth of said coupling groove so that said sealing arm is fittedly received within said coupling groove to form a reinforcing buffer for sustaining unwanted sheering and tearing stress which tend to unfasten said first surface from said second surface.  
   
   
       12 . The zip lock, as recited in  claim 3 , wherein said sealing arm has a height corresponding to a depth of said coupling groove so that said sealing arm is fittedly received within said coupling groove to form a reinforcing buffer for sustaining unwanted sheering and tearing stress which tend to unfasten said first surface from said second surface.  
   
   
       13 . The zip lock, as recited in  claim 9 , wherein said sealing arm has a height corresponding to a depth of said coupling groove so that said sealing arm is fittedly received within said coupling groove to form a reinforcing buffer for sustaining unwanted sheering and tearing stress which tend to unfasten said first surface from said second surface.  
   
   
       14 . The zip lock, as recited in  claim 10 , wherein said sealing arm has a height corresponding to a depth of said coupling groove so that said sealing arm is fittedly received within said coupling groove to form a reinforcing buffer for sustaining unwanted sheering and tearing stress which tend to unfasten said first surface from said second surface.  
   
   
       15 . The zip lock, as recited in  claim 1 , further comprising a supplementary zip fastener, having the same structure of said zip fastener, provided on said second surface adjacent to said lock fastener and a supplementary lock fastener, having the same structure of said lock fastener, provided on said first surface adjacent to said zip fastener to align with said supplementary zip fastener, wherein said lock fastener and said supplementary zip fastener are detachably and sealedly engaged with said zip fastener and said supplementary lock fastener to provide a double-interlock sealing structure for said storage bag.  
   
   
       16 . The zip lock, as recited in  claim 13 , further comprising a supplementary zip fastener, having the same structure of said zip fastener, provided on said second surface adjacent to said lock fastener and a supplementary lock fastener, having the same structure of said lock fastener, provided on said first surface adjacent to said zip fastener to align with said supplementary zip fastener, wherein said lock fastener and said supplementary zip fastener are detachably and sealedly engaged with said zip fastener and said supplementary lock fastener to provide a double-interlock sealing structure for said storage bag.  
   
   
       17 . The zip lock, as recited in  claim 14 , further comprising a supplementary zip fastener, having the same structure of said zip fastener, provided on said second surface adjacent to said lock fastener and a supplementary lock fastener, having the same structure of said lock fastener, provided on said first surface adjacent to said zip fastener to align with said supplementary zip fastener, wherein said lock fastener and said supplementary zip fastener are detachably and sealedly engaged with said zip fastener and said supplementary lock fastener to provide a double-interlock sealing structure for said storage bag.  
   
   
       18 . The zip lock, as recited in  claim 1 , further comprising a supplementary zip fastener, having the same structure of said zip fastener, provided on said first surface adjacent to said zip fastener and a supplementary lock fastener, having the same structure of said lock fastener, provided on said second surface adjacent to said lock fastener to align with said supplementary zip fastener, wherein said lock fastener and said supplementary lock fastener are detachably and sealedly engaged with said zip fastener and said supplementary zip fastener to provide a double-interlock sealing structure for said storage bag.  
   
   
       19 . The zip lock, as recited in  claim 13 , further comprising a supplementary zip fastener, having the same structure of said zip fastener, provided on said first surface adjacent to said zip fastener and a supplementary lock fastener, having the same structure of said lock fastener, provided on said second surface adjacent to said lock fastener to align with said supplementary zip fastener, wherein said lock fastener and said supplementary lock fastener are detachably and sealedly engaged with said zip fastener and said supplementary zip fastener to provide a double-interlock sealing structure for said storage bag.  
   
   
       20 . The zip lock, as recited in  claim 14 , further comprising a supplementary zip fastener, having the same structure of said zip fastener, provided on said first surface adjacent to said zip fastener and a supplementary lock fastener, having the same structure of said lock fastener, provided on said second surface adjacent to said lock fastener to align with said supplementary zip fastener, wherein said lock fastener and said supplementary lock fastener are detachably and sealedly engaged with said zip fastener and said supplementary zip fastener to provide a double-interlock sealing structure for said storage bag.