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Improved rotary coupling for the hermetic connection of corrugated flexible metal hoses
Improved rotary coupling for the hermetic connection of corrugated flexible metal hoses
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机译:改进的旋转接头,用于波纹状金属软管的气密连接
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摘要
An improved rotary coupling for the hermetic connection of corrugated flexible metal hoses, comprising a body (10) for connection to a protruding raised portion (13) whereon there contrasts a shoulder (15) which is formed by the compression of one or more end corrugations of the corrugated hose (14). The hose comprises a shallower end portion (14a) which is arranged adjacent to the shoulder (15) and is obtained by partial radial rolling of the corrugations of the hose; the protruding raised portion (13) is supported by an extension (12) of the body (10) of the coupling; the extension, after being deformed by pressing, places the protruding raised portion substantially in contact with the shallower region (14) of the hose in order to increase the surface for mutual engagement of the shoulder (15) and the protruding raised portion (13).
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