Patent ID: 9022331
Filing Date: 2015-05-05
Classification: F16B

Abstract:
1. A suction device comprising: an elastic base having a peripheral portion adapted to hermetically contact a contact surface and define a vacuum chamber therebetween when a predetermined external force is applied on said elastic base, thereby mounting said elastic base on the contact surface; and a release structure connected operably to said elastic base and having a projection protruding outwardly and at least partially from said elastic base when an applied force on said elastic base is greater than the predetermined external force and retracting inwardly within said elastic base so as to be disposed in said vacuum chamber, wherein when said elastic base is mounted on the contact surface, a distance between a protruding end of said projection and the contact surface is greater than zero, wherein an external force greater than the predetermined external force applied on said elastic base can result in pushing said protruding end of said projection to come into contact with the contact surface, thereby forming a gap between said peripheral portion of said elastic base and said contact surface such that external pressure can flow into said vacuum chamber via said gap to release the suction device from the contact surface.