Patent ID: 6045111
Filing Date: 2000-04-04
Classification: B60R,F16B

Abstract:
A fixing sucker structure comprising a movable handle, a sucker main body, a controlling inner tube and a lifting thread rod, said sucker structure being characterized in that:a center of the bottom of the movable handle is disposed with an annular fitting groove, a square controlling valve being disposed at the center of the fitting groove, a bottom end of the controlling valve being disposed with a downward extending cylindrical fixing block, the cylindrical fixing block being rotatably snugly fitted in a controlling valve socket of the controlling inner tube;a center of a top end of the sucker main body is disposed with a tube body, the top end of the sucker main body being formed with fixing thread holes, the controlling inner tube being rotatably fitted in the tube body, a gasket having a U-shaped cross-section being fitted with a bottom edge of the sucker main body, the gasket having a trapezoid base;an upper end of the controlling inner tube is formed with an engaging flange, whereby the controlling inner tube is rotatably sealedly fitted in the tube body of the sucker main body, an opening of the controlling inner tube being formed with the controlling valve socket having a profile corresponding to that of the controlling valve of the movable handle, an inner wall of the controlling inner tube below the socket being formed with an inner thread section for screwing with the lifting thread rod; anda bottom end of the lifting thread rod is connected with a disc-like enlarged section, a circumference of the enlarged section being formed with annular grooves in which soft gaskets are fitted, whereby when the movable handle is rotated, the controlling inner tube is driven to rotate so as to micro-adjust and drive the lifting thread rod to move upward or downward within the sucker main body, creating a vacuum state therein and producing a strong sucking force.