| 摘要 |
The instant disclosure relates to a push-fit ring-seal joint structure for plastic pipes. For the joint structure, a lip portion tapers away from the pipe outlet, while a throat portion tapers toward the pipe outlet. The joint structure allows the angular deflection to be increased by three or four times versus the conventional push-fit joint, while maintaining excellent sealing and pressure rating. By the unique design of the joint structure, the structural flexibility of pipe connection can be increased. When there is ground movement due to land subsidence or earthquake or adjustment in pipe route, the coupled pipe can maintain excellent sealing and pressure rating. Therefore, the joint structure of the instant disclosure indeed has novelty and industrial applicability. |
