Abutting-Typed Paper Cover

Abstract

A abutting-typed paper cover includes a cover body, a reinforced guide portion, and a buckling portion. The cover body includes a flat face and a cover rim. The reinforced guide portion is disposed on the cover rim and wraps on three outer side walls of the cover rim. The buckling portion extends from the reinforced guide portion and an extending direction of the buckling portion is opposite to that of the cover rim. On a section taken along a vertical line perpendicular to a plane where the flat face is located the buckling portion includes an arc-shaped section. One end of the arc-shaped section is abutted against the flat face. When the abutting-typed paper cover is covered on a container, a curling rim of the container will abutt against the flat face and the arc-shaped section. The abutting-typed paper cover can be fixed on the container 20 and it will not fall off without external force, and it can form a better seal with the container so that the liquid in the container will not leak out.

What is claimed is: 
     
         1 . An abutting-typed paper cover, which is used to buckling on a container, the container comprising a container opening , and a curling rim arranged on the container opening, the abutting-typed paper cover comprising:
 a cover body, the cover body comprising a flat face, and a cover rim extending from the flat face, an angle between an extending direction of the cover rim and a vertical line of a plane where the flat face is located being an acute angle, the acute angle being between 0 degree and 15 degrees;   a reinforced guide portion disposed on the cover body, the reinforced guide portion being fixed on the cover rim and wrapping on the three outer side walls of the cover rim; and   a buckling portion extending from the reinforce guide portion, and an extending direction of the buckling portion being opposite to that of the cover rim, on a section taken along the vertical line of the plane where the flat face is located the buckling portion comprising an arc-shape section, one end of the arc-shape being abutted against the flat face, when the abutting-typed paper cover is buckled on the container opening of the container the curling rim is abutting against on the flat face and the arc-shape section.   
     
     
         2 . The abutting-typed paper cover as claimed in  claim 1 , wherein the acute angle between the extending direction of the cover rim and the vertical line of the plane where the flat face is located is 0 degree. 
     
     
         3 . The abutting-typed paper cover as claimed in  claim 1 , wherein a height of the cover rim is between 2 mm to 20 mm along the vertical line of the plane where the flat face is located. 
     
     
         4 . The abutting-typed paper cover as claimed in  claim 1 , wherein on the section taken along the vertical line of the plane where the flat face is located the reinforced guide portion has a groove-shaped structure, the reinforced guide portion is directly adhered to the three outer side walls of the cover rim. 
     
     
         5 . The abutting-typed paper cover as claimed in  claim 4 , wherein the buckling portion is integrally formed with one side of the reinforce guide portion which has the groove-shaped structure. 
     
     
         6 . The abutting-typed paper cover as claimed in  claim 1 , wherein a central angle of the arc-shaped section is less than or equal to 180 degrees. 
     
     
         7 . The abutting-typed paper cover as claimed in  claim 1 , wherein an angle between a chord of the arc-shaped section and which is perpendicular to the plane where the flat face is located is an acute angle, and the acute angle is between 0 degrees and 30 degrees. 
     
     
         8 . The abutting-typed paper cover as claimed in  claim 1 , wherein the buckling portion further comprises a push-stop section connected to the arc-shaped section, a length of the push-stop section is larger than or equal to a chord of the arc-shaped section. 
     
     
         9 . The abutting-typed paper cover as claimed in  claim 8 , wherein an angle between an extending direction of the push-stop section and the vertical line of the plane where the flat face is located is an acute angle. 
     
     
         10 . The abutting-typed paper cover as claimed in  claim 9 , wherein the angle between an extending direction of the push-stop section and the vertical line of the plane where the flat face is located is between 0 degree to 15 degrees. 
     
     
         11 . The abutting-typed paper cover as claimed in  claim 8 , wherein the buckling portion further comprises an push-stop curling rim arranged at the free end of the push-stop section. 
     
     
         12 . The abutting-typed paper cover as claimed in  claim 8 , wherein the push-stop section comprises a transition section, the transition section  1221  is arc-shaped. 
     
     
         13 . The abutting-typed paper cover as claimed in  claim 1 , wherein the abutting-typed paper cover further comprises a sucker hole provided on the flat face. 
     
     
         14 . The abutting-typed paper cover as claimed in  claim 13 , wherein the sucker hole is a through hole. 
     
     
         15 . The abutting-typed paper cover as claimed in  claim 13 , wherein the sucker hole is coverd by at least three punching covers, at least three punching covers are connected to the sucker hole. 
     
     
         16 . The abutting-typed paper cover as claimed in  claim 1 , wherein the abutting-typed paper cover further comprises a direct drinking hole provided on the flat face. 
     
     
         17 . The abutting-typed paper cover as claimed in  claim 16 , wherein the direct drinking hole is a through hole and is a polygon hole. 
     
     
         18 . The abutting-typed paper cover as claimed in  claim 16 , wherein the direct drinking hole further comprises a hole cover covered thereon, and a connection provided between the hole cover and the direct drinking hole, a crease is disposed on the connection.