Combination frame material

Abstract

A combination frame material includes an outer frame and an inner frame. Therein, the outer frame has an outer side and an inner side, with the inner side provided with two parallel combining grooves with a middle pillar disposed therebetween for dividing the two combining grooves. The inner frame has two parallel combining parts for being received in the two combining grooves, with a pillar groove disposed between the two combining parts for receiving the middle pillar. Thus, the outer frame and the inner frame are allowed to be combined easily and efficiently.

What is claimed is: 
     
         1 . A combination frame material, comprising:
 an outer frame having an outer side and an inner side, the inner side provided with two parallel combining grooves with a middle pillar disposed therebetween for dividing the two combining grooves; and   an inner frame having two parallel combining parts for being received in the two combining grooves, with a pillar groove disposed between the two combining parts for receiving the middle pillar.   
     
     
         2 . The combination frame material of  claim 1 , wherein each of the combining groove is provided with a first inner wall and an opposite second inner wall with at least a concave strip disposed on the first and second inner wall, respectively, each of the combining part provided with a first outer wall and an opposite second outer wall with at least a convex strip disposed on the first and second outer wall, respectively, for matching the corresponding concave strip. 
     
     
         3 . The combination frame material of  claim 2 , wherein the first inner wall is provided with two concave strips, and the first outer wall is provided with two convex strips. 
     
     
         4 . The combination frame material of  claim 2 , wherein the combining groove is further provided with a bottom wall and two corner recesses disposed at two sides of the combining groove, and the combining part is further provided with a combining wall connected between the first outer wall and the second outer wall, while the combining wall contacts the bottom wall. 
     
     
         5 . The combination frame material of  claim 4 , wherein a slope is disposed between the first wall and the combining wall and between the second wall and the combining wall, respectively, for correspondingly overlapping the corner recess. 
     
     
         6 . The combination frame material of  claim 2 , wherein the second outer walls of the combining parts are correspondingly disposed on two inner face of the pillar groove. 
     
     
         7 . The combination frame material of  claim 2 , wherein the second inner walls of the combining grooves are correspondingly disposed on two outer faces of the middle pillar. 
     
     
         8 . The combination frame material of  claim 2 , wherein the concave strip and the convex strip are inclinedly disposed. 
     
     
         9 . The combination frame material of  claim 1 , wherein the outer frame is made of a plastic-wood material in strip shape. 
     
     
         10 . The combination frame material of  claim 1 , wherein openings of the inner frame and the outer frame face the same direction.