US Patent 9615607 Electronic cigarette

The present application discloses an electronic cigarette, which comprises a battery rod, an atomizer, and a connection structure; the connection structure includes a first connecting piece and a second connecting piece; a buckle is deposited on an exterior sidewall of the first connecting piece; a receiving hollow, a guiding slot and a stop slot are defined in the second connecting piece; the second connecting piece includes a lower electrode which elastically abuts against the first connecting piece; when assembling the electronic cigarette, inserting the first connecting piece into the receiving hollow and moving downward along the guiding slot; having the first connecting piece press down the lower electrode, which makes the buckle reaches the stop slot, then rotating the first connecting piece so that the buckle enters into the stop slot and is locked.