| 摘要 |
A watertight connector for a pipe is provided to stably maintain water tightness while maintaining a coupling state of a pipe when the pipe is contracted or released depending on a thermal expansion coefficient. A watertight connector for a pipe comprises a cylindrical ring(24) and rubber rings(21,21a). The cylindrical ring has rubber ring grooves(25) at both front ends of an inner side thereof. The rubber rings are coupled with the rubber ring grooves. The rubber rings are coupled with the rubber ring grooves and pipes(10,10a) are pushed to the outer side of the rubber rings so that the pipes are fixed and maintain water tightness. A bolt(15) passes through holes(14a) of ring contact plates(11,11a) and is fastened with a nut(16). The ring contact plates have cutting parts(13,13a), respectively. The ring contact plates have coupling protrusions(12,12a) fixed to coupling rings(17), respectively.
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