Thread locking structure of strength instrument

The utility model relates to a strength instrument wire locking structure, which belongs to the technical field of fitness equipment and comprises a base and a wire spool, a steel wire rope is wound on the wire spool, the base is provided with a rectangular inner cavity, the wire spool is rotatably connected in the inner cavity of the base, a plurality of groups of clamping grooves are arranged on the upper end face of the wire spool, and the clamping grooves are arranged at equal intervals along the circumferential direction of the wire spool. The base is slidably connected with the chuck clamped with the clamping groove, and the clamping teeth are clamped in the clamping groove and do not protrude out of the wire spool to interfere with the steel wire rope on the wire spool, so that the clamping teeth do not make contact with the steel wire rope, abrasion of a locking assembly to the steel wire rope in the prior art is avoided, and the service life of the steel wire rope is prolonged. 本实用新型涉及一种力量器械锁线结构，属于健身