| 摘要 |
The present invention relates to rubber rings for piping, capable of preventing the ring from being pushed back, and more particularly to rubber rings for piping (30)(30-1) for connecting and sealing the gap between a corrugated pipe (10) and a corrugated pipe (10-1) with a socket (20), comprising: 1) a cover unit (31), which adheres to the outer peripheral surface of a ring shaped projection unit (11) of the corrugated pipes (10)(10-1); 2) a side unit (32), which has protrusions inside to adhere to a side wall (12) of the ring-shaped projection unit (11); 3) four elastic units (33-1) so that the rubber rings can be inserted into the side unit (32) and be extended toward circumference; and a connection unit (33-2), which connects the elastic units to each other. The elastic units (33-1) include a reinforcement member (33), which has one among a zigzag pattern, a wave pattern, or a wavy plate pattern with multiple holes (34) so that rubber can penetrate into the elastic units during a molding process. According to the present invention, when the rubber rings are coupled to the outer peripheral surface of the corrugated pipes, the rubber rings are easily coupled by the elasticity and resilience of the reinforcement member and the rubber rings are strongly supported due to the vertical power longitudinally exerted toward the side of the rubber rings. Also, when the corrugated pipes are connected, the rubber rings are prevented from being pushed back, departed, or damaged, so construction defect factors can be removed. |
