Joint auxiliary assembly and joint assembly

A joint auxiliary assembly, configured to detach a first joint and a second joint, the joint auxiliary assembly comprising:

• a mounting barrel, wherein a side of the mounting barrel has a plurality of blocking portions, and the mounting barrel is configured to be connected to the first joint;
• a first elastic component, disposed in the mounting barrel, wherein an end of the first elastic component presses against the plurality of blocking portions;
• a restricting barrel, movably disposed on the mounting barrel along an axial direction of the mounting barrel, wherein the plurality of blocking portions is surrounded by the restricting barrel and rests on the restricting barrel;
• an electronic control assembly, disposed on the mounting barrel;
• and
• a liquid detecting unit, wherein at least a part of the liquid detecting unit is disposed on the mounting barrel, and the liquid detecting unit is connected to the electronic control assembly;
• wherein the electronic control assembly is configured to move the plurality of blocking portions by moving the restricting barrel based on the liquid detecting unit.