The invention discloses a novel image processing method and device, and a mobile terminal. A base and an end socket portion connected with the base cooperatively are arranged. An insertion cavity forinsertion of the end socket portion is formed in the left end surface of the base; a first penetration hole is formed in the right inner wall of the insertion cavity; a first sliding cavity is formedin the right inner wall of the first penetration hole; a first double-oblique-plane sliding block is installed in the first sliding cavity in a sliding fit manner; second sliding cavities are formed in the upper and lower inner walls of the first sliding cavity symmetrically; first sliding blocks integrated with the first double-oblique-plane sliding block are installed in the second sliding cavities in a sliding fit manner; and first springs are installed between the first sliding blocks and the right side walls of the second sliding cavities in a top pressing fit manner.