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China's high-end fasteners rely on imports, and old projects invent new ones, which may break the foreign monopo |
| Author : Date : 2012-2-18 23:22:03 |
Although the ancient Chinese had a very good tenon and tenon design, the importance of threaded connections in current buildings is self-evident in today's densely reinforced buildings. Nowadays, even if people have invented very useful bolts and nuts, in many large-scale projects or high-speed and strong equipment operations, various disasters caused by loose connections between bolts and nuts still emerge in endlessly. Therefore, how to prevent the loosening of bolts and nuts is the most important aspect for engineers to design threaded connections. Nowadays, He Changqing, a well-known thread engineer in China, has invented a very effective bolt and nut, which can effectively solve the problem of loose threads. This bolt and nut mainly uses two nuts in opposite directions for reinforcement to achieve the purpose of preventing loosening. One of the double nuts is responsible for tightening, and the other is responsible for limiting. The threads of these two nuts are also opposite. |