Patent ID: 7648109

Claim:
A sucker, comprising: a fixing seat; a sucker body mounted on a first side of the fixing seat and having a central portion provided with a driven post extending through the fixing seat; a control handle pivotally mounted on a second side of the fixing seat and having a first end provided with an eccentric portion pivotally mounted on the driven post of the sucker body and abutting the second side of the fixing seat and a second end provided with a drive portion; a control valve mounted on the fixing seat and detachably abutting the sucker body to control a connection between the fixing seat and the sucker body; wherein the sucker body has a first side provided with a recess facing the first side of the fixing seat and a second side provided with a connecting hole connected to the recess; wherein the control valve includes: a valve stem movably mounted on the fixing seat and movable to stop the recess of the sucker body so as to seal the connecting hole of the sucker body and to interrupt a connection between the connecting hole and the recess of the sucker body; a restoring spring biased between the valve stem and the fixing seat to push the valve stem toward the recess of the sucker body.