| 摘要 |
A connection pipe using a packing of soft material is provided to keep the force applied on the packing uniform by changing the shape of the packing, thereby preventing the leakage of fluid. A connection pipe comprises a body(100), a nut(102), and a packing(110). The nut fits to the outside on one side of the body, and has an inclined inner surface. A part of the packing is pressed onto the inner surface of the body one side and the rest is exposed out of the body. The packing includes a deformable part(108) with protrusions or grooves. The exposed part of the packing is regularly deformed by the protrusions or grooves of the deformable part by fastening the nut.
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