Locking assembly and monitoring camera

The utility model discloses a locking assembly and a monitoring camera, and relates to the field of screw locking structures, and the locking assembly comprises a metal cylinder piece, a self-tapping screw and a sleeve. Wherein the metal cylinder part is fixedly arranged in a plastic part to be locked in a pre-embedded mode, and when the assembly part is used, the other assembly part is locked and fixed with the plastic part by matching the self-tapping screw and the sleeve with the metal cylinder part. A screw hole of an existing plastic part is replaced with the metal cylinder part, the thread strength can be enhanced, it is ensured that locking is firm, and looseness is not prone to occurring. Meanwhile, the self-tapping screw is screwed to press and deform the abutting piece of the sleeve, due to the elastic recovery capacity, the deformed abutting piece can generate counter-acting force on the metal barrel piece and the self-tapping screw, and the elastic supporting effect similar to that of a spring is