| 摘要 |
Each coupling component in a multiple coupling has a number of units arranged alongside one another. The component parts of the coupling units interact in pairs and in a compatible fashion with one another. Each unit includes a subordinate fluid channel and a device for opening and closing the fluid channel depending on the nature of its interaction with the corresponding unit in the other component. With the components in their connected position each pair of units constitutes through its fluid channels, a common essentially leak-free channel sealed off from the common channels formed by the other pairs of units. The components are arranged with guide balls and axial grooves, with the help of which the component parts can be connected together in one or more pre-determined rotational positions. One or both of the coupling components include a protective sleeve displaceable relative to the units of each component part and provided with an end part which contains transcurrent holes so that the protective sleeve in its initial position, tightly encloses the outer parts of the units. A multi-channel coupling can thus be executed rapidly and effectively, at the same time as the coupling can also be used in a dirty environment.
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