Air-permeable waterproof device shoe

Abstract

An air-permeable waterproof device for a shoe has a shoe sole and non-return pieces. Air outlets are disposed at the bottom of the shoe sole, and air vent holes are disposed at the top thereof. Receiving rooms are disposed in the shoe sole and located between the air outlets and air vent holes to connect them together. Bumps are disposed on inner surfaces at the air outlet side of the receiving rooms. The non-return pieces are disposed in the receiving rooms. Foot heat and moisture in a shoe are discharged out from the air vent holes through the air outlets. Exterior water is blocked by the non-return pieces and cannot permeate the shoe through the air vent holes. A filter net is disposed at the shoe sole to prevent the air outlets from being blocked. Moreover, the filter net is skidproof and can absorb moisture in the shoe.

What is claimed is:  
     
         1 . An air-permeable waterproof device for a shoe comprising: 
 a shoe sole having air outlets at a bottom thereof and air vent holes at a top thereof, receiving rooms being disposed in said shoe sole and located between said air outlets and said air vent holes to connect therebetween, and bumps being disposed on inner surfaces at said air outlet side of said receiving rooms; and    a plurality of non-return pieces disposed in said receiving rooms in said shoe sole.    
     
     
         2 . The air-permeable waterproof device for a shoe as claimed in  claim 1 , wherein an outer sole is disposed at the bottom of said shoe sole, said air outlets of said shoe sole are disposed at said outer sole, outer sole receiving grooves with enlarged hole faces are disposed at tops of said air outlets, a middle sole is disposed at the top of said shoe sole, said air vent holes are disposed at said middle sole, and said middle sole and said outer sole are joined together to let said outer sole receiving grooves form said receiving rooms.  
     
     
         3 . The air-permeable waterproof device for a shoe as claimed in  claim 1 , wherein said non-return pieces can move in said receiving rooms, and said non-return pieces are shored up by said bumps on the inner surfaces at said air outlet side of said receiving rooms to keep passable gaps.  
     
     
         4 . The air-permeable waterproof device for a shoe as claimed in  claim 1 , wherein said non-return pieces can move in said receiving rooms, and said non-return pieces contact the inner surfaces at said air vent hole side of said receiving rooms to block said air vent holes.  
     
     
         5 . The air-permeable waterproof device for a shoe as claimed in  claim 1 , wherein an outer sole is disposed at the bottom of said shoe sole, said air outlets of said shoe sole are disposed at said outer sole, a middle sole is disposed at the top of said shoe sole, said air vent holes are disposed at said middle sole, middle sole receiving grooves with enlarged hole faces are disposed at bottoms of said air vent holes, and said middle sole and said outer sole are joined together to let said middle sole receiving grooves form said receiving rooms.  
     
     
         6 . An air-permeable waterproof device for a shoe comprising: 
 a shoe sole having air outlets at a bottom thereof and air vent holes at a top thereof, receiving rooms being disposed in said shoe sole and located between said air outlets and said air vent holes to connect them together, and bumps being disposed on inner surfaces at said air outlet side of said receiving rooms;    a plurality of non-return pieces disposed in said receiving rooms in said shoe sole; and    a filter net disposed at a bottom of said shoe sole.    
     
     
         7 . The air-permeable waterproof device for a shoe as claimed in  claim 6 , wherein an outer sole is disposed at the bottom of said shoe sole, said air outlets of said shoe sole are disposed at said outer sole, outer sole receiving grooves with enlarged hole faces are disposed at tops of said air outlets, a middle sole is disposed at the top of said shoe sole, said air vent holes are disposed at said middle sole, and said middle sole and said outer sole are joined together to let said outer sole receiving grooves form said receiving rooms.  
     
     
         8 . The air-permeable waterproof device for a shoe as claimed in  claim 6 , wherein said filter net is attached to a range of said air outlets, and is integrally formed with said shoe sole.  
     
     
         9 . The air-permeable waterproof device for a shoe as claimed in  claim 6 , wherein said filter net is made of a cloth.  
     
     
         10 . The air-permeable waterproof device for a shoe as claimed in  claim 9 , wherein said cloth is an air-permeable fiber cloth.  
     
     
         11 . The air-permeable waterproof device for a shoe as claimed in  claim 10 , wherein said air-permeable fiber cloth is a non-woven cloth.  
     
     
         12 . The air-permeable waterproof device for a shoe as claimed in  claim 10 , wherein said air-permeable fiber cloth is a cotton cloth.  
     
     
         13 . The air-permeable waterproof device for a shoe as claimed in  claim 10 , wherein said air-permeable fiber cloth is an air-permeable nylon cloth.  
     
     
         14 . The air-permeable waterproof device for a shoe as claimed in  claim 6 , wherein said non-return pieces moves in said receiving rooms, and said non-return pieces are shored up by said bumps on the inner surfaces at said air outlet side of said receiving rooms to keep passable gaps.  
     
     
         15 . The air-permeable waterproof device for a shoe as claimed in  claim 6 , wherein said non-return pieces move in said receiving rooms, and said non-return pieces contact the inner surfaces at said air vent hole side of said receiving rooms to block said air vent holes.  
     
     
         16 . The air-permeable waterproof device for a shoe as claimed in  claim 6 , wherein an outer sole is disposed at the bottom of said shoe sole, said air outlets of said shoe sole are disposed at said outer sole, a middle sole is disposed at the top of said shoe sole, said air vent holes are disposed at said middle sole, middle sole receiving grooves with enlarged hole faces are disposed at bottoms of said air vent holes, and said middle sole and said outer sole are joined together to let said middle sole receiving grooves form said receiving rooms.