Elastic locking mechanism for electronic cigarette, atomizer, and electronic cigarette

An elastic locking mechanism for an electronic cigarette including a liquid storage assembly provided with an opening end, comprising:

• an upper cover removably arranged on the opening end of the liquid storage assembly;
• a screw cap sleeved outside the upper cover;
• an upper engagement component arranged on the screw cap;
• a lower engagement component arranged on the upper cover;
• and
• an elastic element mounted between the screw cap and the upper cover to prevent the upper engagement component and the lower engagement component from engaging each other,
• wherein when the screw cap is pressed down or pulled up, the elastic element is compressed or stretched so that the upper engagement component engages the lower engagement component, and the upper cover is driven to rotate together with the screw cap by rotating the screw cap, so as to open or close the opening end of the liquid storage assembly.