Hemp spinning cop fixing device

The utility model discloses a bast fiber spinning cop fixing device which comprises a fixing rod, a fixing base and a spring bayonet lock, the fixing base is of a circular truncated cone structure, a through hole penetrating through the upper end face and the lower end face of the fixing base is formed in the fixing base, and the spring bayonet lock comprises an upper clamping ring, a lower clamping ring and a plurality of arc-shaped elastic pieces connected between the upper clamping ring and the lower clamping ring. A first opening extending from the top to the bottom is formed in the ring face of the upper clamping ring, a second opening extending from the bottom to the top is formed in the ring face of the lower clamping ring, the diameter of a through hole formed in the fixing base is not smaller than that of the fixing rod, and the diameters of the upper clamping ring and the lower clamping ring are both smaller than that of the fixing rod. The fixing base and the spring bayonet lock are sequentially ar