| 摘要 |
PURPOSE: A socket connecting a hose to a body for preventing a vacuum hose from being twisted is provided for users to conveniently use a vacuum as a vacuum body is well controlled by the users. CONSTITUTION: A vacuum comprises a socket, a vacuum body, a vacuum cover, upper and lower holders. The socket is designed to rotate when users vacuum. The socket is mounted on the vacuum. The surface of the socket is coated with metal. The upper and lower holders are applied with electric signals. The upper and lower holders are coated with conductive materials. The socket freely moves in a two-dimensional direction. [Reference numerals] (AA) 10_ assembly 1
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