Quick dismounting device for wharf oil transfer arm

The utility model discloses a wharf oil transfer arm quick dismounting device which comprises a cart, a mounting frame is fixed to the top of the cart, a bidirectional motor is fixed to the bottom of the mounting frame, a screw is fixed to an output shaft of the bidirectional motor, the outer wall of the screw is in threaded connection with a lower sliding block and an upper sliding block, a lower clamping plate is fixed to the lower sliding block, and a lower clamping plate is fixed to the upper sliding block. The upper sliding block is located on the same side of the lower sliding block and rotationally connected with an upper clamping plate, arc-shaped grooves are formed in the opposite faces of the lower clamping plate and the upper clamping plate, fasteners are detachably connected to the lower clamping plate and the upper clamping plate, mounting cavities are formed in the lower clamping plate and the upper clamping plate, and each fastener comprises an arc-shaped clamping plate mounted in the correspon