Connecting rod structure

A connecting rod structure comprising:

• a first rod comprising a first rod portion, a first limiting portion and a second limiting portion, wherein the first limiting portion and the second limiting portion extend from a side of the first rod portion, the first limiting portion and the second limiting portion are spaced apart, the first limiting portion comprises a first through hole, and the second limiting portion comprises a second through hole aligned with the first through hole;
• a second rod comprising a second rod portion and a positioning portion connected to the second rod portion, wherein the positioning portion comprises a through groove, and the positioning portion is located between the first limiting portion and the second limiting portion, the through groove is located between the first through hole and the second through hole, and an inner diameter of the through groove is greater than an inner diameter of the first through hole and an inner diameter of the second through hole;
• and
• a locking element passing through the first through hole, the through groove and the second through hole, to lock the first rod and the second rod together,
• wherein the first rod further comprises a first protruding limiting portion protruding from the first limiting portion, the first protruding limiting portion extends toward the second limiting portion, and the first through hole penetrates through the first protruding limiting portion.