Locking assembly and chassis

A locking assembly for locking a first frame to a second frame, comprising:

• a shell configured for connecting to the first frame;
• a sliding component slidably connected to the shell, and a guiding slot is defined on the sliding component;
• a locking block rotatably connected to the shell, a clamping notch is defined on the locking block and exposed from a top side of the shell for clamping a locking member on the second frame;
• a transmission group connected to the sliding component through the guiding slot, the transmission group is further connected to the locking block, the transmission group comprises a first block, a second block, and a guiding column, the guiding column is rotatably connected to the first block or the second block, the guiding column is slidably connected to the guiding slot, one end of the first block is rotatably connected to the shell around a first axis, another end of the first block is rotatably connected to the second block, the second block is rotatably connected to the locking block around a second axis for rotating the locking block around a third axis, and the first axis, the second axis, and the third axis are parallel to a second direction, the second direction is perpendicular to the first direction;
• and
• the transmission group is configured to rotate the locking block to clamp or unclamp the locking member, when the sliding component slides along a first direction to guide the transmission group in the guiding slot.