Patent attributes
The invention is related to a suction cup which comprises a main body shell, a base plate, a resilient member, an actuating pin, a pushing block, an unlocking block, and a retaining pin. The main body shell comprises an upper compartment and a lower compartment. The base plate comprises a fixed rod, and the resilient member is mounted around the fixed rod. The base plate is inserted into the lower compartment of the main body shell. The pushing block comprises a space and is inserted into the upper compartment. The unlocking block comprises a notch and is inserted into the space. The actuating pin is inserted into the upper compartment of the main body shell and the space of the pushing block. The retaining pin is inserted into the notch of the unlocking block and the space of the pushing block.