2results about How to "Effective extension" patented technology

The utility model discloses a yarn bobbin fixing buckle structure of a wrap yarn machine, which comprises a pipe body, the left side and the right side of the pipe body are respectively closed, round blocks are connected to the left side and the right side of the pipe body in a penetrating manner, a rotating rod is sleeved in the pipe body, a through hole matched with the rotating rod is formed in each round block, and the through hole is communicated with the rotating rod. The left end and the right end of the rotating rod penetrate through the penetrating holes respectively and extend out of the pipe body, round pipes are arranged on the left side and the right side of the pipe body respectively, the rotating rod is sleeved with the round pipes through bearings, and the positions, close to the left side and the right side, of the rotating rod are sleeved with oval rings respectively. According to the technical scheme, through mutual cooperation of a rotating rod, an oval ring, a right trapezoid block, a second contact wheel and other components, the device can be effectively extended, so that the device can adapt to fixation of bobbins with different hole diameters, the application range and the use efficiency of the device are improved, the right side of an inserting rod can be driven to move while extension is conducted, and the practicability is high. Therefore, the multi-directional clamping can be realized, and the stability is improved.