Positioning ferrule structure for spoke of wheel rim

The present invention relates to a positioning ferrule structure for a spoke of a wheel rim. The ferrule (40) is a hollow dual-layer ferrule and includes an inner layer (43) and an outer layer (41) which are integrally formed by stamping. The outer layer (41) has an outer flange (42) which is larger than a hole (31) of a wheel rim (30) and disposed at an upper end of the outer layer (41). The inner layer (43) has an inner flange (44) which is disposed at an upper end of the inner layer (43) and laps over the outer flange (42). Lower portions of the inner layer (43) and the outer layer (41) are integrally formed and have a plurality of longitudinal cut lines (45) to form a dual-layer engaging section (46). The inner layer (43) elastically tightens a spoke connector (20), and the outer layer (41) is against the hole (31) of the wheel rim (30) to seal the hole (31). The size and weight of the present invention are reduced to be compact. It is labor-saving to deform the dual-layer engaging section (46). The engaging section (46) provides a better tight effect to prevent the spoke connector (20) from looseness. The present invention can effectively keep stability of the tension of the spoke and the spoke is durable.