| 摘要 |
PURPOSE: A noise prevention connecting pipe is provided to improve productivity by making installation easy, to realize the quality of a product by reducing a defect ratio, and to be applied to connecting pipes of various shapes. CONSTITUTION: A connecting pipe(20) is composed of a fluid inlet port, a fluid discharge port, and a fastening nut(29) combined to the inlet port and the outlet port and for fastening the bores of the inlet port and the discharge port. A left cover unit(10a) with a left contact portion(11a) and a right cover unit(10b) with a right contact portion(11b) are installed on the rear face of the connecting pipe symmetric to each other. Herein, a compartment(17) is formed by the left and right cover units surrounding the connecting pipe. The noise caused by the bumping of a fluid against the inner wall of the connecting pipe is absorbed in the compartment. As both ends of a cover composed of the left and right cover units are firmly adhered to the connecting pipe by an adhesive agent, the body of the connecting pipe is completely isolated from the outside without a gap. Therefore, the leakage of noise is reduced.
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