Plug-in assembly structure and an unmanned aerial vehicle with composite wing

A plug-in assembly structure comprises:

• a first component (1), which comprises a first plug (11) and a positioning sleeve (12);
• the positioning sleeve (12) is sleeved on a periphery of the first plug (11), and the positioning sleeve (12) is provided with a first through hole (121);
• a second component (2), which comprises a second plug (21), a radial direction of the second plug (21) is provided with a limit hole (2111), the second plug (21) is configured to be electrically connected with the first plug (11), and the limit hole (2111) is opposite to the first through hole (121);
• and
• a limit assembly (3), which is installed in the limit hole (2111);
• the limit assembly (3) comprises a first elastic element (31) and a limit element (32);
• a first end of the first elastic element (31) is abutted against the bottom of the limit hole (2111), and a second end of the first elastic element (31) is connected to the limit element (32);
• wherein the limit element (32) is at least partially located in the limit hole (2111), and the first elastic element (31) is used to push the limit element (32) toward an outside of the limit hole (2111).