Atomizer having detachable atomizing core and electronic cigarette

An atomizer with a detachable atomizer core, comprising a hollow atomizer sleeve with an open end, said atomizer sleeve comprising an oil storage chamber for storing smoking oil, said atomizer further comprises the atomizer core for atomizing the smoking oil;

• wherein
• said atomizer further comprises a base arranged at the open end of the atomizer sleeve;
• said base is provided with a through-hole for the atomizer core to penetrate to insert inside said atomizer sleeve, and a sliding latch slidingly connected to the base;
• said base is further provided with a first sliding position and a second sliding position along the sliding direction of the sliding latch, wherein said sliding latch is configured such that
• when said sliding latch is in the first sliding position, said sliding latch is connected to the atomizer core to restrict axial movement of said atomizer core along said through-hole
• when said sliding latch is in the second sliding position, said sliding latch and the atomizer core are disengaged from each other to release said restriction.