Quick mounting seat and quick mounting assembly

The invention relates to a quick-mounting seat and a quick-mounting assembly, the quick-mounting assembly comprises the quick-mounting seat and a quick-mounting plate, and the quick-mounting seat comprises a seat body, a clamping assembly and a driving assembly. The clamping assembly comprises a clamping part and a locking part and is used for clamping or releasing the quick-release plate in the process of replacing the quick-release plate by the holder; the driving assembly comprises a driving part and an aligning part, in the process that the driving part drives the clamping part to be close to or far away from the clamping part through rotation, the driving part makes contact with the locking part for abrasion, and the aligning part can adjust the rotation center of the driving part to be closer to or far away from the clamping part so as to compensate for contact abrasion of the driving part and the locking part. Therefore, the quick-mounting seat can better lock or release the quick-mounting ...