Track link structure and track link assembly

A track link structure, which has an outer surface and an inner surface, comprising:

• a first mainbody, comprising:
• a first track link portion comprising a first shaft hole;
• and
• a first connecting portion integrally connected to the first track link portion, wherein a height of the first connecting portion perpendicular to a major axis of the track link structure is smaller than a maximum height of the track link structure, and the first connecting portion comprises:
• a first inclined plane structure disposed on a top surface of the first connecting portion;
• and
• a first connecting structure integrally disposed on the first inclined plane structure;
• and
• a second mainbody, comprising:
• a second track link portion comprising a second shaft hole;
• and
• a second connecting portion integrally connected to the second track link portion, wherein a height of the second connecting portion perpendicular to the major axis of the track link structure is smaller than the maximum height of the track link structure, and the second connecting portion comprises:
• a second inclined plane structure disposed on a bottom surface of the second connecting portion;
• and
• a second connecting structure integrally disposed on the second inclined plane structure;
• wherein the first inclined plane structure is tilted from the outer surface toward the inner surface or from the inner surface toward the outer surface, and the second inclined plane structure is tilted from the outer surface toward the inner surface or from the inner surface toward the outer surface;
• wherein the first connecting portion is correspondingly connected to the second connecting portion so as to assemble the first mainbody and the second mainbody to form the track link structure, the first inclined plane structure corresponds to the second inclined plane structure, and the first connecting structure matches the second connecting structure.