Mat for hidden-type splicing

Abstract

A mat for hidden-type splicing includes a mat body and a splicing bottom base connected thereto. Sides of the splicing bottom base are formed with two adjacent convex parts and two adjacent concave parts. The convex part has a convex part connection surface disposed corresponding to and being flush with a side edge of the mat body. Outwardly convex splicing teeth are disposed on the convex part connection surface and protrude outside the side edge, and adjacent two of which have a splicing outer groove formed therebetween. The concave part has a concave part connection surface disposed corresponding to and being flush with another side edge of the mat body. Inwardly concave splicing grooves are disposed in the concave part connection surface, and adjacent two of which have a splicing inner tooth formed therebetween. The mat body completely covers the two concave parts located therebelow.

What is claimed is: 
     
         1 . A mat for hidden-type splicing, comprising: a mat body ( 1 ) and a splicing bottom base ( 2 );
 wherein each of the mat body ( 1 ) and the splicing bottom base ( 2 ) is in a form of rectangular plate structure, and the splicing bottom base ( 2 ) is fixedly connected to a surface of a downward side of the mat body ( 1 );   wherein one pair of adjacent right-angle sides of the splicing bottom base ( 2 ) are respectively formed with two convex parts ( 21 ), and the other pair of adjacent right-angle sides of the splicing bottom base ( 2 ), namely two right-angle sides symmetrical with the two convex parts ( 21 ) relative to a diagonal line of the splicing bottom base ( 2 ), are respectively formed with two concave parts ( 22 );   wherein each of the convex parts ( 21 ) has a convex part connection surface ( 211 ), the convex part connection surface ( 211 ) is disposed corresponding to and flush with a side edge of the mat body ( 1 ), a plurality of outwardly convex splicing teeth ( 212 ) are protruded on the convex part connection surface ( 211 ) and arranged at intervals, adjacent two of the plurality of outwardly convex splicing teeth ( 212 ) have a splicing outer groove ( 213 ) formed therebetween, and the plurality of outwardly convex splicing teeth ( 212 ) protrude outside the side edge of the mat body ( 1 );   wherein each of the concave parts ( 22 ) has a concave part connection surface ( 221 ), the concave part connection surface ( 221 ) is disposed corresponding to and flush with another side edge of the mat body ( 1 ), a plurality of inwardly concave splicing grooves ( 222 ) are recessed in the concave part connection surface ( 221 ) inwards and arranged at intervals, the plurality of inwardly concave splicing grooves ( 222 ) are matched with the plurality of outwardly convex splicing teeth ( 212 ) in shape, adjacent two of the plurality of inwardly concave splicing grooves ( 222 ) have a splicing inner tooth ( 223 ) formed therebetween, the splicing inner tooth ( 223 ) is matched with the splicing outer groove ( 213 ) in shape, and the mat body ( 1 ) completely covers the two concave parts ( 22 ) of the splicing bottom base ( 2 ) located below the mat body ( 1 ) from above.   
     
     
         2 . The mat for hidden-type splicing as claimed in  claim 1 , wherein each of the plurality of outwardly convex splicing teeth ( 212 ) is in a form of inverted trapezoidal structure, a portion of each of the plurality of outwardly convex splicing teeth ( 212 ) which is connected to the convex part connection surface ( 211 ) is an outwardly convex splicing tooth bottom portion ( 2121 ), another portion of each of the plurality of outwardly convex splicing teeth ( 212 ) which is away from the convex part connection surface ( 211 ) is an outwardly convex splicing tooth top portion ( 2122 ), and a length of the outwardly convex splicing tooth bottom portion ( 2121 ) is smaller than a length of the outwardly convex splicing tooth top portion ( 2122 ). 
     
     
         3 . The mat for hidden-type splicing as claimed in  claim 2 , wherein connections between the outwardly convex splicing tooth bottom portion ( 2121 ) and the convex part connection surface ( 211 ) and corresponding to two end portions in a lengthwise direction of the outwardly convex splicing tooth bottom portion ( 2121 ) are respectively formed with outwardly convex splicing tooth connection rounded corner portion ( 21211 ). 
     
     
         4 . The mat for hidden-type splicing as claimed in  claim 2 , wherein two end portions in a lengthwise direction of the outwardly convex splicing tooth top portion ( 2122 ) are respectively formed with outwardly convex splicing tooth transition rounded corner portions ( 21221 ). 
     
     
         5 . The mat for hidden-type splicing as claimed in  claim 1 , wherein a plurality of antiskid strips ( 11 ) are evenly protruded on a surface of an upward side of the mat body ( 1 ). 
     
     
         6 . The mat for hidden-type splicing as claimed in  claim 1 , wherein the mat body ( 1 ) and the splicing bottom base ( 2 ) are made of an ethylene-vinylacetate copolymer (EVA) and are one-piece structure. 
     
     
         7 . The mat for hidden-type splicing as claimed in  claim 1 , wherein the mat body ( 1 ) and the splicing bottom base ( 2 ) are connected to form an integrated structure by hot-pressing lamination or adhesive bonding.