Connecting assembly, drawer connecting device, and drawer

A connecting assembly, for coordination with an insert which is provided with a lock component, to connect a side panel with a front panel, characterized in that, the connecting assembly comprises:

• a base plate;
• a rotatable latch that is rotatably connected to the base plate, rotatable about a first axis to an unlocking or a locking state, and provided with a slot having an opening at one end;
• and
• an elastic component having one end connected to the rotatable latch and another end connected to the base plate;
• wherein, during insertion of the insert into the connecting assembly in the first direction, the lock component is engaged into the slot through the opening such that the rotatable latch and the insert form the locking state;
• and
• in the locking state, an angle θ between a first reference line, which is defined by a line passing through a center of the lock component and extending in the first direction, and a first connecting line, which is defined by a line passing through the center of the lock component and perpendicularly intersecting the first axis, satisfies 0°≤θ≤θk, wherein θk refers to a critical angle where the rotatable latch and the insert remain in the locking state and the insert cannot be withdrawn from the rotatable latch.