Floorboard with coupling structure

Abstract

A floorboard includes a main body, a first coupling structure and a second coupling structure. The first coupling structure is provided with a first tenon and a second tenon arranged spaced apart. The first tenon and the second tenon are configured to partially incline relative to the main body. Two opposite sides of the main body are respectively provided with the first coupling structure and the second coupling structure. The second coupling structure is provided with a first mortise and a second mortise. The first mortise is configured to fit the first tenon. The second mortise is configured to fit the second tenon.

What is claimed is: 
     
         1 . A floorboard, comprising:
 a main body;   a first coupling structure; and   a second coupling structure;   wherein the first coupling structure comprises a first tenon and a second tenon arranged spaced apart from each other;   the first tenon is configured to be partially inclined relative to the main body, and the second tenon is configured to be partially inclined relative to the main body;   the first coupling structure and the second coupling structure are provided at opposite sides of the main body, respectively;   the second coupling structure is provided with a first mortise and a second mortise; the first mortise is configured to fit the first tenon, and the second mortise is configured to fit the second tenon, so as to achieve floorboard connection; and   in response to a case that two floorboards are coupled, the first coupling structure of one of the two floorboards is engaged with the second coupling structure of the other of the two floorboards to generate a first locking force in a first direction and a second locking force in a second direction, wherein the first direction is perpendicular to the second direction.   
     
     
         2 . The floorboard of  claim 1 , wherein the first tenon comprises a first side portion, a first bottom structure and a second side portion sequentially connected;
 the first side portion comprises a first inclined section, and the first inclined section is configured to at least partially incline downward in a direction away from the second tenon;   the first bottom structure is configured to extend from a bottom end of the first inclined portion toward the second tenon; and   the second side portion is configured to at least partially incline downward in the direction away from the second tenon, and is connected to an end of the first bottom structure.   
     
     
         3 . The floorboard of  claim 2 , wherein the first mortise comprises a first inclined surface, a first bottom surface and a second inclined surface sequentially connected;
 the first inclined surface is configured to at least partially incline downward in a direction away from the second mortise, and is configured to abut against the first inclined portion;   the first bottom surface is configured to extend from a bottom end of the first inclined surface toward the second mortise, and is configured to abut against the first bottom structure;   the second inclined surface is configured to at least partially incline downward in the direction away from the second mortise, and is connected to an end of the first bottom surface; and   the second inclined surface is configured to abut against the second side portion.   
     
     
         4 . The floorboard of  claim 3 , wherein the first bottom structure comprises a first bottom portion and a second bottom portion; an end of the first bottom portion is connected to an end of the first side portion; and the first bottom portion is arranged horizontally; and
 the second bottom portion is convex downward relative to the first bottom portion, the first bottom surface is matched with the first bottom structure, and an area of the first bottom surface corresponding to the second bottom portion is configured to recess downward to fit the second bottom portion; or   the second bottom portion is configured to recess upward relative to the first bottom portion, and the area of the first bottom surface corresponding to the second bottom portion is convex upward to fit the second bottom portion.   
     
     
         5 . The floorboard of  claim 3 , wherein the second tenon comprises a third side portion, a second bottom structure and a fourth side portion sequentially connected;
 the third side portion is configured to at least partially extend downward, and is connected to a first end of the second bottom structure;   the second bottom structure is configured to extend from a bottom end of the third side portion in a direction away from the first tenon; and   the fourth side portion is configured to at least partially extend downward, and is connected to a second end of the second bottom structure.   
     
     
         6 . The floorboard of  claim 5 , wherein the third side portion comprises a first straight section, a second inclined section and a second straight section;
 the first straight section is configured to extend downward;   the second inclined section is configured to at least partially incline downward from an end of the first straight section toward the first tenon; and   the second straight section is configured to extend downward from an end of the second inclined section away from the first straight section.   
     
     
         7 . The floorboard of  claim 6 , wherein the second bottom structure comprises a third inclined section, a third straight section and a fourth inclined section;
 the third inclined section is configured to at least partially incline downward from an end of the second straight section away from the second inclined section in the direction away from the first tenon;   the third straight section is configured to extend from an end of the third inclined section away from the second straight section in the direction away from the first tenon; and   the fourth inclined section is configured to at least partially incline downward toward the first tenon, and is connected to an end of the third straight section away from the third inclined section.   
     
     
         8 . The floorboard of  claim 7 , wherein the fourth side portion comprises a fifth inclined section and a sixth inclined section connected with each other;
 the fifth inclined section is configured to at least partially incline downward in the direction away from the first tenon, and is connected to an end of the fourth inclined section away from the third straight section; and   the sixth inclined section is configured to at least partially incline downward toward the first tenon, and is connected to an end of the fifth inclined section away from the fourth inclined section.   
     
     
         9 . The floorboard of  claim 8 , wherein the second mortise comprises a first straight surface, a third inclined surface, a second straight surface, a fourth inclined surface, a third straight surface, a curved surface, a fifth inclined surface and a sixth inclined surface sequentially connected;
 the first straight surface is configured to extend downward, and is configured to abut against the first straight section;   the third inclined surface is configured to at least partially incline downward from an end of the first straight surface toward the first mortise, and is configured to abut against the second inclined section;   the second straight surface is configured to extend downward from an end of the third inclined surface away from the first straight surface, and is configured to abut against the second straight section;   the fourth inclined surface is configured to at least partially incline downward from an end of the second straight surface away from the third inclined surface in a direction away from the first mortise;   the third straight surface is configured to extend from an end of the fourth inclined surface away from the second straight surface in the direction away from the first mortise;   the curved surface is configured to incline downward toward the first mortise, and is connected to an end of the third straight surface away from the fourth inclined surface;   the fifth inclined surface is configured to at least partially incline downward in the direction away from the first mortise, and is connected to an end of the curved surface away from the third straight surface;   the fifth inclined surface is configured to abut against the fifth inclined section;   the sixth inclined surface is configured to at least partially incline downward toward the first mortise, and is connected to an end of the fifth inclined surface away from the curved surface; and   the sixth inclined surface is configured to abut against the sixth inclined section.   
     
     
         10 . The floorboard of  claim 9 , wherein the third straight section comprises a first sub-section and a second sub-section;
 a first end of the first sub-section is connected to an end of the fourth inclined section away from the fifth inclined section;   a second end of the first sub-section is connected to a first end of the second sub-section;   a second end of the second sub-section is connected to the end of the third inclined section away from the second straight section;   the first sub-section is arranged horizontally; and   the second sub-section is configured to recess upward relative to the first sub-section, the third straight surface is configured to fit the third straight section, and an area of the third straight surface corresponding to the second sub-section is convex upward to fit the second sub-section; or   the second sub-section is convex downward relative to the first sub-section, and the area of the third straight surface corresponding to the second sub-section is configured to recess downward to fit the second sub-section.   
     
     
         11 . The floorboard of  claim 9 , wherein a third mortise is provided between the first tenon and the second tenon; a third tenon is provided between the first mortise and the second mortise; and the third tenon is configured to fit the third mortise;
 a seventh inclined section is provided between the second side portion and the third side portion; the seventh inclined section is configured to at least partially incline downward from an end of the second side portion away from the first bottom structure in the direction away from the first tenon;   the seventh inclined section is connected to an end of the third side portion away from the second bottom structure; and   the second side portion, the seventh inclined section and the third side portion are together configured to enclose the third mortise.   
     
     
         12 . The floorboard of  claim 11 , wherein the second coupling structure further comprises a seventh inclined surface; the seventh inclined surface is configured to incline downward from an end of the second inclined surface away from the first bottom surface in the direction away from the first mortise; and the seventh inclined surface is connected to an end of the first straight surface away from the third inclined surface;
 the second inclined surface, the seventh inclined surface, the first straight surface, the third inclined surface and the second straight surface are together configured to enclose the third tenon;   the second inclined surface is configured to abut against the second side portion; the seventh inclined surface is configured to abut against the seventh inclined section; the first straight surface is configured to abut against the first straight section; the third inclined surface is configured to abut against the second inclined section; and the second straight surface is configured to abut against the second straight section.