Patent ID: 9746022
Date: 2017-08-29
CPC Classifications: F16B,F16M

Claim:
1. A suction cup, comprising: a substantially flat framework, a cup body covering said substantially flat framework, a cup cover including a circular flat to portion adjacent to a concave outer portion; wherein said cup cover covering said cup body, a pressing element on said cup cover, a connection rod passing through both said cup cover and the top layer of said cup body and connected to said substantially flat framework, a seal element and at least one protruding ring extending from an inner surface of said cup cover, wherein said cup body comprises an adsorption surface with a recess to accommodate said seal element to reduce a distance between said seal element and said at least one protruding ring to receive a pressing force therefrom, and wherein said substantially flat framework extends radially with a peripheral sandwiched between said seal element and said at least one protruding ring to form a rigid configuration for transferring said pressing force from said at least one protruding ring to said seal element, a plurality of annularly distributed protruding ribs around an inner surface area of said peripheral of said substantially flat framework, and a plurality of through holes, corresponding to said annularly distributed protruding ribs, in said cup body for said annularly protruding ribs to extend through said through holes so that said at least one protruding ring of said cup cover and said annularly protruding ribs of said substantially flat framework are in direct contact to transfer said pressing force from said at least one protruding ring.