Patent ID: 7753324

Claim:
An improved sucking disc apparatus, capable of detecting an adhesive force, comprising: a rod body, comprising at least one slot, at least one slide, at least one containing space, and at least one opening, wherein the slide, the containing space and the opening are interconnected with each other, and the slide has a flange protruded from the slide; at least one sucking disc, installed at the rod body and corresponding to the slot, comprising a spring with both ends abutted at the sucking disc and the rod body respectively; at least one pressing rod, pivotally coupled to either the slot or the sucking disc, turned with respect to the rod body and abutted at the sucking disc; at least one operating rod, installed at the slide and slid with respect to the rod body, comprising a first end, a second end and a return spring, wherein the first end is protruded from the rod body, and the second end is protruded out from the containing space, and both ends of the return spring is abutted at the flange and the first end respectively; at least one first identification element, comprising an axial shaft, wherein the first identification element is installed in the containing space by the axial shaft, and the first identification element further comprises a first color corresponding to he opening; and at least one second identification element, coaxially and pivotally coupled at the axial shaft and the second end, wherein the second identification element is turned with respect to the first identification element and stacked onto the first identification element, and the second identification element comprises a second color corresponding to the opening, and the second color and the first color being different colors.