| 摘要 |
Title: Coupler Abstract The invention relates to a coupler, belonging to the technical field of a transmission coupling component, comprising a sheath and a positioning sleeve in the sheath. A first coupling key and a second coupling key distributed crisscross are provided in the positioning sleeve, contact surfaces of the first coupling key and the second coupling key are provided with grooves, respectively, and the grooves of the two coupling keys are spliced together. FIG. 1 FIG. 2 FIG. 3 FIG. 4 |
