| CPC A47B 47/0008 (2013.01) [A47B 96/1433 (2013.01); A47B 96/1441 (2013.01); A47B 96/1466 (2013.01); A47B 2230/07 (2013.01)] | 5 Claims |

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1. An inner wall frame with grooves for attachment with sleeve joints, comprising:
frame 1, which is made of two sealed walls on both sides, namely vertical wall 1 and vertical wall 2;
a horizontal side of the two sealed walls has opening 1 functioning to accept the insertion of tenons;
first insides of the vertical wall 1 and the vertical wall 2 are equipped with side 1 of fin 1 and side 2 of fin 1, respectively, which make a horizontal shape along a first length of the vertical wall 1 and the vertical wall 2;
the side 1 of the fin 1 and the side 2 of the fin 1, respectively, are equipped with several grooves 1 along the first length of the vertical wall 1 and the vertical wall 2 functioning to accept the insertion of the tenons;
frame 2, which is made of two other sealed walls on both sides, namely vertical wall 3 and vertical wall 4;
an other horizontal side of the two other sealed walls has opening 2 functioning to accept the insertion of the tenons;
second insides of the vertical wall 3 and the vertical wall 4 are equipped with side 1 of fin 2 and side 2 of the fin 2, respectively, which make a vertical shape along a second length of the vertical wall 3 and the vertical wall 4;
the side 1 of the fin 2 and the side 2 of the fin 2, respectively, are equipped with several groove 2 along the second length of the vertical wall 3 and the vertical wall 4, functioning to accept the insertion of the tenons;
the tenons are part of a body that is smaller than the opening 1 of the frame 1 and the opening 2 of the frame 2, functioning as a part connecting the frame 1 and the frame 2 together;
wherein the side 1 of the fin 1 is equipped with at least one row composed of row 1 of the fin 1, row 2 of the fin 1, row 3 of the fin 1, and row 4 of the fin 1.
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