Patent ID: 7661648

Claim:
A sucker device for a fixing support, comprising (a) a body, the body having a base with a bottom curved holding room; the body having a sleeve part joined on an upper side of the base; the sleeve part having a middle hollow portion communicating with the curved holding room of the base; the middle hollow portion of the sleeve part of the body having a plurality of guide grooves; the sleeve part having a threaded portion on an outer side thereof; the sleeve part having lengthways extending slots on the threaded portion thereof; the body being joined to a bottom portion of a fixing support at an upper end of the sleeve part; (b) an elastic plate-shaped sucking disk positioned adjacent to a bottom of the base of the body; the sucking disk having an upright axial rod securely joined to a middle thereof and held in the middle hollow portion of the sleeve part of the body; the axial rod having a transverse through hole; the axial rod having guide protrusions thereon being respectively received in the guide grooves; and (c) an operating mechanism to move the sucking disk in order for the disk to stick to an object; the operating mechanism including: an elastic element held in the middle hollow portion of the sleeve part of the body and propped against an upper end of the axial rod; a pressing rod passed through the transverse through hole of the axial rod and sticking out through the lengthways extending slots of the sleeve part at two ends thereof; a knob having a middle screw hole; the knob being positioned around the sleeve part, between the pressing rod and the base of the body, with the threaded portion of the sleeve part being threadedly engaged with the screw hole of the knob; the two outer ends of the pressing rod being propped against an upper side of the knob; and a covering part having a middle hole; the covering part being positioned on an upper end of the knob, with the sleeve part being passed through the middle hole of the covering part.